A minor problem with DuckDuckGo search engine:

[taba]

Thanks for clarification.
Have you tried running the browser with safemode.bat?

I do not know when and under what conditions this problem arises. If I had known this, I would try to run Cent Browser with safe mode to understand whether I could create the same problem in safe mode.

So, since I cannot artificially create the problem, I always need to use the browser with safe mode and wait until the problem occurs spontaneously. But you'll appreciate that no one wants to do an experiment that is not known how long it will take.