I am not an "veteran PBEM player", but tinker and play with SP series for a long time already and never noticed it. Interesting

But than, at work, we also often find bugs in our sw that are either long forgotten or occur on such occassions that they are very, very hard to find by any systematic experiments (open menu 1, open menu 2, choose item a from menu 2, open again menu 1, choose item c, click into the main window, add module, modify it, turn three times clockwise on your chair and if it is raining on that day, the bug appears

)