Glad to hear that you were able to solve to problem on your own. Once you find out which extension is causing the issue, please post the name here. This will help users with similar problems find the solution quicker.

Once you have done so, you should also be able to mark your post as the solution to the question.

Sorry again. Cannot re-create. I re-enabled each add-on one at a time and re-started each time. None caused a problem. So perhaps fixing it had something to do with sequence of actions I took? Probably will never know.

Sorry to have no useful info, but I didn't want to leave it hanging. And I do appreciate your participation, Wesley.