1 - My setting was different to what was set (I swear). The app somehow changed the sequences.
2 - The red cross for cancelling a sequence is not working, when I try to cancel lower branches it is not even displayed.
Changing a browser could help but it didn’t work in my case.
My game was paused by OGS support until the problem is resolved.
If any of you had the same problem, you may share it here.