diff --git a/packages/api-observable/src/Base.ts b/packages/api-observable/src/Base.ts
index 70b0ca7972..7d20f96473 100644
--- a/packages/api-observable/src/Base.ts
+++ b/packages/api-observable/src/Base.ts
@@ -53,7 +53,7 @@ export default class ApiBase {
         }
 
         try {
-          // FIXME This now gets done in api-core/rpc-core as well, cleanup as soon as we
+          // FIXME This now gets done in api/Base as well, cleanup as soon as we
           // have apis based on api-rx & api-promise (For now a bit of inefficiency)
           const meta = await this._api.state.getMetadata().toPromise();
 
@@ -70,7 +70,7 @@ export default class ApiBase {
             resolveReady(true);
           }
         } catch (error) {
-          // swallow
+          console.error(error);
         }
       });
     });
diff --git a/packages/rpc-core/package.json b/packages/rpc-core/package.json
index 855d91bbe8..55e34e6aa6 100644
--- a/packages/rpc-core/package.json
+++ b/packages/rpc-core/package.json
@@ -32,6 +32,6 @@
     "@babel/runtime": "^7.1.2",
     "@polkadot/jsonrpc": "^0.31.108",
     "@polkadot/rpc-provider": "^0.31.108",
-    "@polkadot/util": "^0.32.12"
+    "@polkadot/util": "^0.32.13"
   }
 }
diff --git a/packages/rpc-provider/package.json b/packages/rpc-provider/package.json
index 4d487ee91d..f64eb7b899 100644
--- a/packages/rpc-provider/package.json
+++ b/packages/rpc-provider/package.json
@@ -30,10 +30,10 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-provider#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/keyring": "^0.32.12",
+    "@polkadot/keyring": "^0.32.13",
     "@polkadot/storage": "^0.31.108",
-    "@polkadot/util": "^0.32.12",
-    "@polkadot/util-crypto": "^0.32.12",
+    "@polkadot/util": "^0.32.13",
+    "@polkadot/util-crypto": "^0.32.13",
     "@types/nock": "^9.3.0",
     "eventemitter3": "^3.1.0",
     "isomorphic-fetch": "^2.2.1",
diff --git a/packages/type-extrinsics/package.json b/packages/type-extrinsics/package.json
index b957bf328e..e876c63d50 100644
--- a/packages/type-extrinsics/package.json
+++ b/packages/type-extrinsics/package.json
@@ -11,6 +11,6 @@
   "license": "ISC",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/util": "^0.32.12"
+    "@polkadot/util": "^0.32.13"
   }
 }
diff --git a/packages/type-extrinsics/src/fromMetadata.ts b/packages/type-extrinsics/src/fromMetadata.ts
index 51bd14fceb..d7aee7477d 100644
--- a/packages/type-extrinsics/src/fromMetadata.ts
+++ b/packages/type-extrinsics/src/fromMetadata.ts
@@ -18,13 +18,20 @@ import extrinsics from './index';
  * @param metadata - The metadata to extend the storage object against.
  */
 export default function fromMetadata (metadata: Metadata): Extrinsics {
+  let indexCount = -1;
+
   const findIndex = (prefix: string): number => {
+    indexCount++;
+
     const mod = metadata.calls.find((item) =>
       item.prefix.toString() === prefix
     );
 
     if (!mod) {
-      throw new Error(`Unable to find module index for '${prefix}'`);
+      console.error(`Unable to find module index for '${prefix}'`);
+
+      // compatible with old versions
+      return indexCount;
     }
 
     return mod.index.toNumber();
diff --git a/packages/type-extrinsics/src/utils/createUnchecked.ts b/packages/type-extrinsics/src/utils/createUnchecked.ts
index f5ec51fba2..9bd932b4fd 100644
--- a/packages/type-extrinsics/src/utils/createUnchecked.ts
+++ b/packages/type-extrinsics/src/utils/createUnchecked.ts
@@ -6,6 +6,7 @@ import { ExtrinsicFunction } from '../types';
 
 import { FunctionMetadata } from '@polkadot/types/Metadata';
 import { Extrinsic, Method } from '@polkadot/types/index';
+import { assert } from '@polkadot/util';
 
 /**
  * From the metadata of a function in the module's storage, generate the function
@@ -25,9 +26,7 @@ export default function createDescriptor (
   const expectedArgs = Method.filterOrigin(meta);
 
   extrinsicFn = (...args: any[]): Extrinsic => {
-    if (expectedArgs.length.valueOf() !== args.length) {
-      throw new Error(`Extrinsic ${section}.${method} expects ${expectedArgs.length.valueOf()} arguments, got ${args.length}.`);
-    }
+    assert(expectedArgs.length.valueOf() === args.length, `Extrinsic ${section}.${method} expects ${expectedArgs.length.valueOf()} arguments, got ${args.length}.`);
 
     return new Extrinsic({
       method: new Method({
diff --git a/packages/type-storage/package.json b/packages/type-storage/package.json
index af4ae6842c..6e8961d49f 100644
--- a/packages/type-storage/package.json
+++ b/packages/type-storage/package.json
@@ -30,9 +30,9 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/type-storage#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/keyring": "^0.32.12",
+    "@polkadot/keyring": "^0.32.13",
     "@polkadot/types": "^0.31.108",
-    "@polkadot/util": "^0.32.12",
-    "@polkadot/util-crypto": "^0.32.12"
+    "@polkadot/util": "^0.32.13",
+    "@polkadot/util-crypto": "^0.32.13"
   }
 }
diff --git a/packages/type-storage/src/fromMetadata.ts b/packages/type-storage/src/fromMetadata.ts
index 05519a82d9..06f0b6bc0d 100644
--- a/packages/type-storage/src/fromMetadata.ts
+++ b/packages/type-storage/src/fromMetadata.ts
@@ -31,8 +31,8 @@ export default function fromMetadata (metadata: Metadata): Storage {
 
     const prefix = moduleMetadata.storage.prefix;
 
+    // For access, we change the index names, i.e. Balances.FreeBalance -> balances.freeBalance
     result[stringLowerFirst(prefix.toString())] = moduleMetadata.storage.functions.reduce((newModule, func) => {
-      // Lowercase the 'f' in storage.balances.freeBalance
       newModule[stringLowerFirst(func.name.toString())] = createFunction(prefix, func.name, func);
 
       return newModule;
diff --git a/packages/type-storage/src/utils/createFunction.ts b/packages/type-storage/src/utils/createFunction.ts
index c5b00dcc37..13017dcf7a 100644
--- a/packages/type-storage/src/utils/createFunction.ts
+++ b/packages/type-storage/src/utils/createFunction.ts
@@ -7,7 +7,7 @@ import { createType } from '@polkadot/types/codec';
 import { StorageFunctionMetadata } from '@polkadot/types/Metadata';
 import { StorageFunction } from '@polkadot/types/StorageKey';
 import { Text } from '@polkadot/types/index';
-import { isNull, isUndefined, stringLowerFirst, stringToU8a, u8aConcat } from '@polkadot/util';
+import { assert, isNull, isUndefined, stringLowerFirst, stringToU8a, u8aConcat } from '@polkadot/util';
 import { xxhashAsU8a } from '@polkadot/util-crypto';
 
 export interface CreateItemOptions {
@@ -54,9 +54,7 @@ export default function createFunction (
         );
       }
 
-      if (isUndefined(arg) || isNull(arg)) {
-        throw new Error(`${meta.name} expects one argument`);
-      }
+      assert(!isUndefined(arg) && !isNull(arg), `${meta.name} expects one argument`);
 
       const type = meta.type.asMap.key.toString(); // Argument type, as string
 
diff --git a/packages/types/package.json b/packages/types/package.json
index 101c0ca5c0..f322295a29 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -30,7 +30,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/types#readme",
   "dependencies": {
     "@babel/runtime": "^7.1.2",
-    "@polkadot/keyring": "^0.32.12",
-    "@polkadot/util": "^0.32.12"
+    "@polkadot/keyring": "^0.32.13",
+    "@polkadot/util": "^0.32.13"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 139665eeb6..c5e3109f8e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1313,14 +1313,14 @@
     typedoc-plugin-markdown "^1.1.17"
     typescript "^3.1.3"
 
-"@polkadot/keyring@^0.32.12":
-  version "0.32.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/keyring/-/keyring-0.32.12.tgz#b801bb88bc059d0d76cb6412440a451b070b2db8"
-  integrity sha512-YMHmXC8t943Kh/HQmsCcYkjpz3Hs2f4xPCIcKo1H1HZyUOMjNMiIIl0yReVlit1QHIL1M7ggWlX+B5k3g5Vdkg==
+"@polkadot/keyring@^0.32.13":
+  version "0.32.13"
+  resolved "https://registry.yarnpkg.com/@polkadot/keyring/-/keyring-0.32.13.tgz#a1da9139c0428ee53286376286422d573ecd693c"
+  integrity sha512-sa86Tu5r+7o4XDZRpsG2Cv3AM0FhQ4cdI74HHIMICHakru8bxdFUWTQEQG8eDhoHDge174wTVT72UGOo/GgZcA==
   dependencies:
     "@babel/runtime" "^7.1.2"
-    "@polkadot/util" "^0.32.12"
-    "@polkadot/util-crypto" "^0.32.12"
+    "@polkadot/util" "^0.32.13"
+    "@polkadot/util-crypto" "^0.32.13"
     "@types/bs58" "^3.0.30"
     bs58 "^4.0.1"
 
@@ -1331,13 +1331,13 @@
   dependencies:
     "@types/node" "^10.12.0"
 
-"@polkadot/util-crypto@^0.32.12":
-  version "0.32.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-0.32.12.tgz#f44221d88e12aeddec0c80453240519bf7126fac"
-  integrity sha512-mwKI8TNEKuSBGIyC4LnQtLIcuacPaoGjmqlKe7FcugD0J0vJRZ+YJnYJCHr76ndIJhik0j4YmU5tLrwatY+J4Q==
+"@polkadot/util-crypto@^0.32.13":
+  version "0.32.13"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-0.32.13.tgz#e4231a9889e3e07dc301ad7924c8db3ca639fce0"
+  integrity sha512-AvLcC7drJ8O8VK7t30TaBnWrkcdXlbbGXMZ15YPDbXSEVYW2CqorDzJejBwYKsEzlnRjpNGp3q9ImjpYjtthlA==
   dependencies:
     "@babel/runtime" "^7.1.2"
-    "@polkadot/util" "^0.32.12"
+    "@polkadot/util" "^0.32.13"
     "@types/bip39" "^2.4.0"
     bip39 "^2.5.0"
     blakejs "^1.1.0"
@@ -1345,10 +1345,10 @@
     tweetnacl "^1.0.0"
     xxhashjs "^0.2.2"
 
-"@polkadot/util@^0.32.12":
-  version "0.32.12"
-  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.32.12.tgz#60e7e2c88dce0febb7ba431460931ed73e36f3ed"
-  integrity sha512-KEnocbZgtHtxB9n7OW6WrgfLL6RNvVc5LhAnbAzgPosS6paSJakTlDVfyige0rjySQxBMmxp98i2RaR4VVaryw==
+"@polkadot/util@^0.32.13":
+  version "0.32.13"
+  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.32.13.tgz#5fbd805917f5e5b874f80bdee75f44a7046bacd1"
+  integrity sha512-5cmwlEgXu5erHPXnsCEKb4En95g4QajVFpTtGDlwiwga105XwhoZJCDqKYS1jtCu28MpE9GDbQ0PjZf4ibxT8w==
   dependencies:
     "@babel/runtime" "^7.1.2"
     "@types/bn.js" "^4.11.2"