When clicking on any of the sidebar apps like WhatsApp, Aria etc. this only opens a half-size window, and I cannot access the top half.
I am using Opera One(Version: 106.0.4998.52) (arm64) on a MacBook Pro with MacOS Sonoma 14.2.1 - this effect suddenly appeared a couple of days ago.
Today I have completely re-installed the latest version of Opera One, cleared all preferences in the Application Support folder, and everything that might have been cached.
Alas, same result.
Can anybody give advise on how to fix this?