Hi, I'm having this problem on the front ans the back end to edit an item.
when you access the editing an item k2 form, and transparent layer stays on top block mouse and cursor access to the editing fields and buttons.
Look at the image for better understanding.

Thank you for getting back to me.
After I clicked on SAVE, on that page, it went away and has not come back yet.
The console did not show any conflict.