In the collision mask settings window and in the object points window, a comma is used as a decimal separator (otherwise it is reset to zero):
In event sheets, a dot is used as a separator (otherwise, it generates an error):
Suggestion: lead to a unified view.
P.S. Or could this be considered a mistake?
Hmm…commas are only used in languages where that’s default separator, unless something is really odd on your install (like an ancient version).
The current version of GDevelop is 5.0.121.
It is possible that different processing is performed in different windows: hard-installed or corresponding to regional settings. I have the Russian format installed.
Update:
Depending on the format, commas are displayed, but only in some windows. It would be more convenient to have the same person everywhere.
