Try editing an FX value like Grouping or any other; it happens with all of them. If you’re in the dialog box to edit the value every time you press the push encoder instead of exiting the window, as happens with dialog box attributes, it’s as if another dialog box opens in overlay. You’ll have to click Cancel every time you click the push encoder.

I can see that this is unexpected behaviour here, and as such from a user perspective is a bug. We’ll look into this for a future update.
When pushing it again, I assume you would like to cancel rather than accept?
Yes cancel rather than accept because is the same that happens for the attributes

