Flows does not start anymore from Fibaro s2

Hmm, in that case, unfortunately I can’t help you.
The issue with Scene Activation started with the experimental firmware version v13.2.0-rc.1/2:

[bug?] all multi-click-activated flows no longer working
[APP] Fibaro - Your home is your castle (by Athom) - #1077 by 0burner0

However, the problem was actually resolved with version v13.2.0-rc.5, at least for me and other users:

[APP] Fibaro - Your home is your castle (by Athom) - #1092 by DirkG

The only thing I can recommend is to contact Athom’s support team.