Possible error investigation

@svornost @Blank_Alt @Arkerthan

Need someone to test this save. Should do the following, but my version is out of date enough that everything works fine and I defintely was not reloading it trying to spur the event to fail or anything like that.

free-cities-20221218-101948.swf

Cannot reproduce on current version. (c4dd9ff0)

mentioned in issue #4435 (closed)

I am currently 50/50 due to being unable to prepuce this error message either however it would appear that a separate bag has been identified: #4435 (closed)

Got no additional leads on it. Closing for now.

closed