File "electrum\gui\qt\main_window.py", line 763, in update_tabs
  File "electrum\gui\qt\util.py", line 521, in update
  File "electrum\gui\qt\utxo_list.py", line 44, in on_update
  File "electrum\address_synchronizer.py", line 470, in f
  File "electrum\address_synchronizer.py", line 766, in get_utxos
  File "electrum\address_synchronizer.py", line 714, in get_addr_utxo