diff --git a/embark-ui/src/api/index.js b/embark-ui/src/api/index.js
index 554f0c710..2175b86d5 100644
--- a/embark-ui/src/api/index.js
+++ b/embark-ui/src/api/index.js
@@ -22,7 +22,7 @@ export function fetchTransactions(blockFrom) {
 }
 
 export function fetchTransaction(hash) {
-  return axios.get(`${constants.httpEndpoint}/blockchain/transactions${hash}`);
+  return axios.get(`${constants.httpEndpoint}/blockchain/transactions/${hash}`);
 }
 
 export function fetchProcesses() {
diff --git a/embark-ui/src/containers/AccountContainer.js b/embark-ui/src/containers/AccountContainer.js
index dab3ade9b..0bfa23e24 100644
--- a/embark-ui/src/containers/AccountContainer.js
+++ b/embark-ui/src/containers/AccountContainer.js
@@ -32,7 +32,7 @@ function mapStateToProps(state, props) {
   if(state.accounts.data) {
     return {account: state.accounts.data.find(account => account.address === props.match.params.address)};
   }
-  return null;
+  return {};
 }
 
 AccountContainer.propTypes = {
diff --git a/embark-ui/src/containers/BlockContainer.js b/embark-ui/src/containers/BlockContainer.js
index d95477f68..aef7e1d5c 100644
--- a/embark-ui/src/containers/BlockContainer.js
+++ b/embark-ui/src/containers/BlockContainer.js
@@ -21,7 +21,7 @@ class BlockContainer extends Component {
 
     return (
       <React.Fragment>
-        <Block blocks={block} />
+        <Block block={block} />
         <Transactions transactions={block.transactions} />
       </React.Fragment>
     );
@@ -30,9 +30,9 @@ class BlockContainer extends Component {
 
 function mapStateToProps(state, props) {
   if(state.blocks.data) {
-    return {block: state.blocks.data.find(block => block.number === props.match.params.blockNumber)};
+    return {block: state.blocks.data.find(block => block.number.toString() === props.match.params.blockNumber)};
   }
-  return null;
+  return {};
 }
 
 BlockContainer.propTypes = {
diff --git a/embark-ui/src/containers/TransactionContainer.js b/embark-ui/src/containers/TransactionContainer.js
index 22707b142..2d98b3b15 100644
--- a/embark-ui/src/containers/TransactionContainer.js
+++ b/embark-ui/src/containers/TransactionContainer.js
@@ -20,7 +20,7 @@ class TransactionContainer extends Component {
 
     return (
       <React.Fragment>
-        <Transaction transactions={transaction} />
+        <Transaction transaction={transaction} />
       </React.Fragment>
     );
   }
@@ -30,7 +30,7 @@ function mapStateToProps(state, props) {
   if(state.transactions.data) {
     return {transaction: state.transactions.data.find(transaction => transaction.hash === props.match.params.hash)};
   }
-  return null;
+  return {};
 }
 
 TransactionContainer.propTypes = {
diff --git a/embark-ui/src/reducers/accountsReducer.js b/embark-ui/src/reducers/accountsReducer.js
index 0fb9e6782..90e11b83e 100644
--- a/embark-ui/src/reducers/accountsReducer.js
+++ b/embark-ui/src/reducers/accountsReducer.js
@@ -1,13 +1,23 @@
 import {RECEIVE_ACCOUNTS, RECEIVE_ACCOUNTS_ERROR, RECEIVE_ACCOUNT, RECEIVE_ACCOUNT_ERROR} from "../actions";
 
+function filterAccount(account, index, self) {
+  return index === self.findIndex((a) => a.address === account.address);
+}
+
 export default function accounts(state = {}, action) {
   switch (action.type) {
     case RECEIVE_ACCOUNTS:
-      return Object.assign({}, state, {data: action.accounts.data});
+      return {
+        ...state, data: [...action.accounts.data, ...state.data || []]
+          .filter(filterAccount)
+      };
     case RECEIVE_ACCOUNTS_ERROR:
       return Object.assign({}, state, {error: true});
     case RECEIVE_ACCOUNT:
-      return Object.assign({}, state, {data: action.account.data});
+      return {
+        ...state, data: [action.account.data, ...state.data || []]
+          .filter(filterAccount)
+      };
     case RECEIVE_ACCOUNT_ERROR:
       return Object.assign({}, state, {error: true});
     default:
diff --git a/embark-ui/src/reducers/blocksReducer.js b/embark-ui/src/reducers/blocksReducer.js
index 9b4c8de2f..124f96a76 100644
--- a/embark-ui/src/reducers/blocksReducer.js
+++ b/embark-ui/src/reducers/blocksReducer.js
@@ -1,15 +1,31 @@
-import {RECEIVE_BLOCKS, RECEIVE_BLOCKS_ERROR} from "../actions";
+import {RECEIVE_BLOCK, RECEIVE_BLOCK_ERROR, RECEIVE_BLOCKS, RECEIVE_BLOCKS_ERROR} from "../actions";
+
+function sortBlock(a, b) {
+  return b.number - a.number;
+}
+
+function filterBlock(block, index, self) {
+  return index === self.findIndex((t) => t.number === block.number);
+}
 
 export default function blocks(state = {}, action) {
   switch (action.type) {
     case RECEIVE_BLOCKS:
       return {
-        ...state, data: [...state.data || [], ...action.blocks.data]
-          .filter((block, index, self) => index === self.findIndex((t) => t.number === block.number))
-          .sort((a, b) => b.number - a.number)
+        ...state, data: [...action.blocks.data, ...state.data || []]
+          .filter(filterBlock)
+          .sort(sortBlock)
       };
     case RECEIVE_BLOCKS_ERROR:
       return Object.assign({}, state, {error: true});
+    case RECEIVE_BLOCK:
+      return {
+        ...state, data: [action.block.data, ...state.data || []]
+          .filter(filterBlock)
+          .sort(sortBlock)
+      };
+    case RECEIVE_BLOCK_ERROR:
+      return Object.assign({}, state, {error: true});
     default:
       return state;
   }
diff --git a/embark-ui/src/reducers/transactionsReducer.js b/embark-ui/src/reducers/transactionsReducer.js
index e2f3b290a..a2cc6b5ee 100644
--- a/embark-ui/src/reducers/transactionsReducer.js
+++ b/embark-ui/src/reducers/transactionsReducer.js
@@ -1,21 +1,35 @@
-import {RECEIVE_TRANSACTIONS, RECEIVE_TRANSACTIONS_ERROR} from "../actions";
+import {RECEIVE_TRANSACTION, RECEIVE_TRANSACTION_ERROR, RECEIVE_TRANSACTIONS, RECEIVE_TRANSACTIONS_ERROR} from "../actions";
 
 const BN_FACTOR = 10000;
 
+function sortTransaction(a, b) {
+  return ((BN_FACTOR * b.blockNumber) + b.transactionIndex) - ((BN_FACTOR * a.blockNumber) + a.transactionIndex);
+}
+
+function filterTransaction(tx, index, self) {
+  return index === self.findIndex((t) => (
+    t.blockNumber === tx.blockNumber && t.transactionIndex === tx.transactionIndex
+  ));
+}
+
 export default function transactions(state = {}, action) {
   switch (action.type) {
     case RECEIVE_TRANSACTIONS:
       return {
-        ...state, data: [...state.data || [], ...action.transactions.data]
-          .filter((tx, index, self) => index === self.findIndex((t) => (
-            t.blockNumber === tx.blockNumber && t.transactionIndex === tx.transactionIndex
-          )))
-          .sort((a, b) => (
-            ((BN_FACTOR * b.blockNumber) + b.transactionIndex) - ((BN_FACTOR * a.blockNumber) + a.transactionIndex))
-          )
+        ...state, data: [...action.transactions.data, ...state.data || []]
+          .filter(filterTransaction)
+          .sort(sortTransaction)
       };
     case RECEIVE_TRANSACTIONS_ERROR:
       return Object.assign({}, state, {error: true});
+    case RECEIVE_TRANSACTION:
+      return {
+        ...state, data: [action.transaction.data, ...state.data || []]
+          .filter(filterTransaction)
+          .sort(sortTransaction)
+      };
+    case RECEIVE_TRANSACTION_ERROR:
+      return Object.assign({}, state, {error: true});
     default:
       return state;
   }
diff --git a/embark-ui/src/sagas/index.js b/embark-ui/src/sagas/index.js
index a55ea6fd0..c4db69ce3 100644
--- a/embark-ui/src/sagas/index.js
+++ b/embark-ui/src/sagas/index.js
@@ -57,7 +57,7 @@ export function *watchFetchBlocks() {
 
 export function *fetchAccount(payload) {
   try {
-    const account = yield call(api.fetchAccounts, payload.address);
+    const account = yield call(api.fetchAccount, payload.address);
     yield put(actions.receiveAccount(account));
   } catch (e) {
     yield put(actions.receiveAccountError());