Hi @Laura Landau sorry to hear about this experience. Could it be that the stickies which you were trying to edit were locked? If so, you would need to unlock them by doing a long press on that button. 

Thanks for your response but not thats not the case unfortunately ;(

@Laura Landau - A video showing the issue could help us better understand what is happening; ideally leading to an explanation and with steps on how to avoid the issue.

Loom is free, quite easy to use, and very easy to share a vscreen recording.

All seems to be ok now, no idea what was going on but automagically resolved!