I can confirm this. This happens when the window is too small. It's easy to duplicate, but inconsistent. I noticed it first on my chrome book, which has a smaller than average vertical dimension. 1 Create a small window, particularly in the vertical dimension 2 Create a PM in that small window. Result: Text field is covered by formatting bar. Note that you should refresh between attempts to duplicate. If you create a proper PM dialog, it will likely create itself properly on subsequent tries, even after the window is made large enough again. The reverse is also true, but the results are inconsistent. It seems to happen most often once the window is smaller than 1100 x 700, but like I said, it's inconsistent. My Chromebook cannot get sufficient vertical resolution to successfully create a PM dialog. I have to go to my desktop for that. Chromebook resolution is 1366 x 768. I have not had this problem until very recently.