Grid Lines Randomly Reverting Format – Known Issue?

[Heftor]

Hi everyone,

I’ve encountered a strange issue in Archicad. I created grid lines and customized their appearance (line weight, color, type, etc.), but the next day they reverted to a different format without any input from me.

Details:

• The grids snapped back to their original state after I pressed OK while checking their properties (the settings were correct, but Archicad wasn’t applying them).

Questions:

1. Is this normal behavior, or could it be a bug?

2. Has anyone found a permanent fix to make grids retain their formatting?

Attachments:

• Before/after screenshots.

Thanks for your help!

Operating system used: Windows