When taping on buttons for changing font size in submenus the entire panel with font formating buttons dissapear. Steps to reproduce: 1) open any text document 2) on the botton right corner tap on the edit button 3) tap on the button whith framed A 4) tap on any submmenu button (f.e. styles) 5) tap on button for increasing or decreasing font size System information: OS: Android Device: Lenovo TB-7304F App version: 6.4.3.
I could not reproduce on version 7.6 alpha1+ from F-Droid. I used the increase and decrease font size buttons and the panel remained visible. Might be specific to Collabora Online. Can you please test again in a recent version?
As explained in other ticket, Collabora Android 6.4 is old, latest is 21.11 but s23.05 snapshot is already available. And I do not reproduce. Please report Collabora app issues to Github Collabora Online.