diff --git a/electrum/channel_db.py b/electrum/channel_db.py
index dc258953a..65809c596 100644
--- a/electrum/channel_db.py
+++ b/electrum/channel_db.py
@@ -737,7 +737,8 @@ class ChannelDB(SqlDB):
             self._channels_for_node[channel_info.node1_id].add(channel_info.short_channel_id)
             self._channels_for_node[channel_info.node2_id].add(channel_info.short_channel_id)
             self._update_num_policies_for_chan(channel_info.short_channel_id)
-        self.logger.info(f'load data {len(self._channels)} {len(self._policies)} {len(self._channels_for_node)}')
+        self.logger.info(f'data loaded. {len(self._channels)} chans. {len(self._policies)} policies. '
+                         f'{len(self._channels_for_node)} nodes.')
         self.update_counts()
         (nchans_with_0p, nchans_with_1p, nchans_with_2p) = self.get_num_channels_partitioned_by_policy_count()
         self.logger.info(f'num_channels_partitioned_by_policy_count. '
diff --git a/electrum/lnpeer.py b/electrum/lnpeer.py
index e7f889a30..ee4716340 100644
--- a/electrum/lnpeer.py
+++ b/electrum/lnpeer.py
@@ -1574,6 +1574,8 @@ class Peer(Logger):
             # TODO: we should check that all trampoline_onions are the same
             return None, processed_onion.trampoline_onion_packet
 
+        # TODO don't accept payments twice for same invoice
+        # TODO check invoice expiry
         info = self.lnworker.get_payment_info(htlc.payment_hash)
         if info is None:
             log_fail_reason(f"no payment_info found for RHASH {htlc.payment_hash.hex()}")
diff --git a/electrum/lnworker.py b/electrum/lnworker.py
index 4a414ab1e..64496bcf2 100644
--- a/electrum/lnworker.py
+++ b/electrum/lnworker.py
@@ -1210,7 +1210,7 @@ class LNWallet(LNWorker):
             failure_msg = htlc_log.failure_msg
             code, data = failure_msg.code, failure_msg.data
             self.logger.info(f"UPDATE_FAIL_HTLC. code={repr(code)}. "
-                             f"decoded_data={failure_msg.decode_data()}. data={data.hex()}")
+                             f"decoded_data={failure_msg.decode_data()}. data={data.hex()!r}")
             self.logger.info(f"error reported by {bh2u(route[sender_idx].node_id)}")
             if code == OnionFailureCode.MPP_TIMEOUT:
                 raise PaymentFailure(failure_msg.code_name())
@@ -1274,6 +1274,8 @@ class LNWallet(LNWorker):
             sender_idx: int,
             failure_msg: OnionRoutingFailure) -> None:
         code, data = failure_msg.code, failure_msg.data
+        # TODO can we use lnmsg.OnionWireSerializer here?
+        # TODO update onion_wire.csv
         # handle some specific error codes
         failure_codes = {
             OnionFailureCode.TEMPORARY_CHANNEL_FAILURE: 0,