@andy5995 [Adwaita](https://en.wikipedia.org/wiki/Adwaita) is a dead tortoise. For the life of me I don't know why GTK chose that name, except to allow me to confuse people with bad jokes, sorry. :grin:
The problem seems to happen on a number of different themes, so I don't see that its likely to be theme related, but what it is I don't know, calling GTK experts.