Interesting. Got home from Mass a few minutes ago. I tried MS Edge and without popping out the sheet, I was able to create a basilisk via d&d. When I went to pop out that sheet it gave me a blank screen. Okay, I do not use Edge much at all.
So then I opened FF and did the same thing. It worked fine without popping out the sheet. When I tried to do it via a popped out sheet it would not let me d&d to the sheet. I use two screens. Same exact thing for Chrome. So this is a big improvement. I can pop out a parsed sheet just fine now. Not sure what's going on. My PC may have restarted while I was gone though. Just checked settings and it did restart while I was gone.
So maybe I needed to do the auto fill thing and restart the PC. Maybe it's in the popped out sheets when I try. I'll try some more tomorrow after work with stat blocks to see how that goes. Then I'll let it run and see if it starts to slow down after a while which is what I have been experiencing for about 2 weeks.
Thanks!