Slitherine

If you have a full stack and happen to capture an enemy siege-engine, you will now have a stack of over 20 units, and the game will crash if you try to move it.

This seems to only happen with siege units: they don't go to jail like other units, but get added to your own stack instead, causing this issue if you already had a full stack

Does it matter if they are packed or unpacked when you capture them?

Think they were packed, but can't say for sure