IF WIDGETS DISAPPEAR AFTER UPDATING THE APP
I am trying to figure out the cause of this, but it seems this is an unfortunate interference of actions, when my app is being updated to a new version, while the launcher tries to call on it to redraw its widgets.

Until I find a better solution this button is an easy fix:
FORCE REDRAW ALL WIDGETS

I update the app sometimes a hundred times a day as I work on it, and it happens once or twice. I try to minimize the app releases in part to spare my users from this.

I am sorry for the inconvenience.