Before starting a new game, I decided to check how the mod works. I loaded an old completed map, ran around the base and distant ore patches for a while, and also checked things using the remote map view. The crash occurred at an ore patch being mined by an airship. Here is the screenshot: [https://i.postimg.cc/wT8ys9Y2/4l9vax4l9vax4l9v.png]

Thanks for the report. Unfortunately I can't reproduce the issue, but I suspect it has something to do with entities in storage becoming invalid when loading an old map from 1.1.

I've added a validity check to the offending code, which is now active in the Codeberg build.

The crash occurs when hovering the mouse cursor over an Airship station or its nearby chests, so if this continues to trouble you, you'll need to remove it using a Deconstruction planner (without directly hovering it).

Thank you for the patch! If the issue only occurs on old maps, I’ll start my 2.0 run with peace of mind xD. I'm glad I won't have to remove the Airships addon, as they are excellent for logistics before getting construction bots.