Traceback (most recent call last):
  File "electrum\gui\qt\send_tab.py", line 544, in do_save_invoice
  File "electrum\gui\qt\send_tab.py", line 550, in save_pending_invoice
  File "electrum\wallet.py", line 1193, in save_invoice
  File "electrum\wallet.py", line 479, in save_db
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\json_db.py", line 398, in write
  File "electrum\json_db.py", line 48, in wrapper
  File "electrum\json_db.py", line 409, in _append_pending_changes
  File "electrum\storage.py", line 117, in append
electrum.storage.StorageOnDiskUnexpectedlyChanged: expected size 82038739, found 81850623