I have a Lenovo Helix windows 10 Pro tablet with Acrobat DC Version 2015.010260.
The issue appears when working in handwriting mode with pen.
After creating a textbox, I cannot edit it: When I double click on it with the pen it does not allow edition (instead I just get the document fitted to the window) and I did not find the way to make it editable.
The issue does not happen when working in desktop mode: I can edit the textbox after double clicking on it.
But I have to work in a tablet mode. If the issue is not solved I cannot use Acrobat.