Greetings, I've upgraded from some version of DNN 8 to 9.2.1 and I'm experiencing major issues with ckEditor.

Html Editor Manager does not open from persona bar, neither from configure editor options.

The issue appears when I try to use Image Manager and click on browse server. A blank popup appears and chrome seems to be loading endlessly. Server never returns anything and no error appears in dnn logs or server logs

I tried switching to the latest version of ckEditor from watcher.net but more or less faced the same issues.

Any suggestions? I am cross checking with other dnn sites on the same server (fresh installs tho) and I can't seem to find any difference.

Any assistance would be greatly appreaciated.