First, the oscillating tabs have re-appeared. They were put down years ago.

The two tabs on the right are resizing constantly, oscillating back and forth. (Obviously a screen shot doesn't show this, but I don't have video capture software to show what is really going on.)
Second, my pop-ups are appearing in the UL corner of the screen rather than their normal places.
Clicking on the three vertical dot icon on the RH side produces a pop up on the LHS:

Hovering over a word in the Bible, the parsing pop-up appears in the upper LH side of the screen rather than the bottom LH side.

I am not aware of changes to my software that might have created these strange behaviors. Is anyone else noticing these?