Yesterday I updated v2.5.x. to v3.1.15, all groups worked well with v3.1.15.
Today I restored a backup on a Homey Pro early 2019, 8.1.3 which included the old v2.5.x.
The newest v3.1.15 was installed/updated automatically because v2.5.x was installed before via the restore process.
The devices which worked well with v3.1.15 before do not work after the restore anymore.
I installed v3.1.15 manually again, same result, the group devices do not work.
The devices are related to the group app in the app section.
But it seems something went wrong in the restore process or did I miss something.
