The problem still occurs after a few minutes of editing, when loading the “Stamp Tool” library.

Inkarnate's tab then turns black for a split second and returns to the Stamp Tool library.

When you return to the edition of the map, it is completely black. Background, foreground, and stamp textures are invisible.

It is possible to add new stamps but impossible to color the fore or back.

The “Recovery” tool has no effect.

In most cases, saving the card, exiting and reloading it allows you to reissue it correctly afterwards.

The issue appeared on Brave and Edge browsers, but not on Firefox.