Unable to delete some editable text with Pro

As of today, I am unable to delete some editable text and/or images in familiar pdf files. I can put a bounding box around the item that want to delete and I can resize it, copy it, paste it and I can even move it off the page, but the delete button has no effect. This seems to only affect some of the editable items or images on the page and not others. I have been following through on some suggested fixes on Copilot but nothing has resolved it so far. I am guessing an update has caused some issues as this is not the only thing that I have encountered with Pro today. Other settings have changed, which I have had to reset. Would be good to get some prompt attention from Adobe on this. Using V.2026.001.21789