This is the repository with a minimal sample: https://github.com/VincenzoLiguori96/minimal_example_tobii .
I noticed that the issues don’t happen always, but when it happens then continue to not working even if i restart the app. (I’m sorry but the labels are in italian, but for the problem they are meaningless, just skip and try to watch the red-colored button at the corners, they are gaze aware and have to turn green).