New Bug Encountered: Expressions in a form seem to fail

[Snoopy]

Hi everybody,
I have an issue that might be related to the recently reported temporary problems around Google Drive, too.
I encountered the following:
I have a numeric input field called “Spiel RE” that I set to 122.
But expressions (simple equality checks) that I have based on that field used in subsequent columns return wrong results.
As I had implemented this already a while ago, I think that this problem only materialised recently.

Any idea or suggestion ? Thx.