Webmail Filters Need to be Saved Twice Every Time

As title suggests. Every time I add a new filter to my webmail settings, it always fails to save the first time I hit “Save”…

Screenshot 2024-08-19 at 18.52.29

When I hit “Save” for a second time it saves correctly…

Screenshot 2024-08-19 at 18.52.40

This happens every single time—whether I add a single new filter of multiple new filters. It’s not the biggest showstopping bug in the world. But it’s kind of annoying. Especially given I’m still not 100% convinced that the filters actually work properly all the time, anyway… So this just adds to the uncertainty.

This seems to be a Roundcube thing. Roundcube is updated to a new version with MIAB v. 70. Does this still occur after update?
Please also confirm if Roundcube filters work or they are being ingonred?