Traceback (most recent call last):
  File "/home/amnesia/Electrum-4.1.5/electrum/gui/qt/history_list.py", line 743, in <lambda>
    menu.addAction(_("Increase fee"), lambda: self.parent.bump_fee_dialog(tx))
  File "/home/amnesia/Electrum-4.1.5/electrum/gui/qt/main_window.py", line 3396, in bump_fee_dialog
    d = BumpFeeDialog(main_window=self, tx=tx, txid=txid)
  File "/home/amnesia/Electrum-4.1.5/electrum/gui/qt/rbf_dialog.py", line 154, in __init__
    help_text=help_text,
  File "/home/amnesia/Electrum-4.1.5/electrum/gui/qt/rbf_dialog.py", line 42, in __init__
    assert fee is not None
AssertionError