diff --git a/src/sakia/data/processors/transactions.py b/src/sakia/data/processors/transactions.py
index c247630dc50eec517da19f3ca49325c3b7f13cf3..35435d2f2b0996969c03e5991e81002fd8a8a2c4 100644
--- a/src/sakia/data/processors/transactions.py
+++ b/src/sakia/data/processors/transactions.py
@@ -46,7 +46,7 @@ class TransactionsProcessor:
         """
         return self._repo.get_transfers(currency, pubkey)
 
-    def _try_transition(self, tx, transition_key, inputs):
+    def _try_transition(self, tx, transition_key, *inputs):
         """
         Try the transition defined by the given transition_key
         with inputs
diff --git a/src/sakia/gui/widgets/context_menu.py b/src/sakia/gui/widgets/context_menu.py
index 817e01d8bfe2d0c4f4d815a9109dc5cb2a41037c..9a869bcf824345a04a08607a98c4e270822e0304 100644
--- a/src/sakia/gui/widgets/context_menu.py
+++ b/src/sakia/gui/widgets/context_menu.py
@@ -58,10 +58,6 @@ class ContextMenu(QObject):
         menu.qmenu.addAction(copy_pubkey)
 
         if identity.uid and menu._app.parameters.expert_mode:
-            copy_membership = QAction(menu.qmenu.tr("Copy membership document to clipboard"), menu.qmenu.parent())
-            copy_membership.triggered.connect(lambda checked, i=identity: menu.copy_membership_to_clipboard(i))
-            menu.qmenu.addAction(copy_membership)
-
             copy_selfcert = QAction(menu.qmenu.tr("Copy self-certification document to clipboard"), menu.qmenu.parent())
             copy_selfcert.triggered.connect(lambda checked, i=identity: menu.copy_selfcert_to_clipboard(i))
             menu.qmenu.addAction(copy_selfcert)
@@ -167,23 +163,6 @@ QMessageBox.Ok | QMessageBox.Cancel)
         block_doc = await blockchain_processor.get_block(self._connection.currency, number)
         clipboard.setText(block_doc.signed_raw())
 
-    @asyncify
-    async def copy_membership_to_clipboard(self, identity):
-        """
-
-        :param sakia.core.registry.Identity identity:
-        :return:
-        """
-        clipboard = QApplication.clipboard()
-        membership = await identity.membership(self._community)
-        if membership:
-            block_number = membership['written']
-            block = await self._community.get_block(block_number)
-            block_doc = Block.from_signed_raw("{0}{1}\n".format(block['raw'], block['signature']))
-            for ms_doc in block_doc.joiners:
-                if ms_doc.issuer == identity.pubkey:
-                    clipboard.setText(ms_doc.signed_raw())
-
     @asyncify
     async def copy_selfcert_to_clipboard(self, identity):
         """
diff --git a/src/sakia/services/blockchain.py b/src/sakia/services/blockchain.py
index c355fd850b5ba285645607140a249be5bcd4f1fb..62a3e33f2d14f322a4ab80fb0255a6ebfe040c1d 100644
--- a/src/sakia/services/blockchain.py
+++ b/src/sakia/services/blockchain.py
@@ -44,10 +44,10 @@ class BlockchainService(QObject):
             with_money = await self._blockchain_processor.new_blocks_with_money(self.currency)
             blocks = await self._blockchain_processor.blocks(with_identities + with_money + [network_blockstamp.number],
                                                              self.currency)
+            await self._sources_service.refresh_sources()
             if len(blocks) > 0:
                 identities = await self._identities_service.handle_new_blocks(blocks)
                 changed_tx, new_tx, new_dividends = await self._transactions_service.handle_new_blocks(blocks)
-                await self._sources_service.refresh_sources()
                 self._blockchain_processor.handle_new_blocks(self.currency, blocks)
                 self.app.db.commit()
                 for tx in changed_tx:
diff --git a/src/sakia/services/documents.py b/src/sakia/services/documents.py
index a68d58a26b8a9ae2c60b444ecfeae9c5b8a38b60..bd845224d63bc3a9b983ec7a502e09c0dca12d51 100644
--- a/src/sakia/services/documents.py
+++ b/src/sakia/services/documents.py
@@ -3,8 +3,7 @@ import attr
 import logging
 
 from duniterpy.key import SigningKey
-from duniterpy import PROTOCOL_VERSION
-from duniterpy.documents import BlockUID, Block, Certification, Membership, Revocation, InputSource, \
+from duniterpy.documents import Certification, Membership, Revocation, InputSource, \
     OutputSource, SIGParameter, Unlock, block_uid
 from duniterpy.documents import Identity as IdentityDoc
 from duniterpy.documents import Transaction as TransactionDoc
@@ -202,7 +201,7 @@ class DocumentsService:
         :param str salt: The account SigningKey salt
         :param str password: The account SigningKey password
         """
-        revocation = Revocation(PROTOCOL_VERSION, currency, None)
+        revocation = Revocation(10, currency, None)
         self_cert = identity.document()
 
         key = SigningKey(salt, password)