Somfy - Velux IF - Tilt command causes cover to open instead

I have some Somfy covers that use the same protocol as Velux does, I use a KLF200 interface to talk to my Velux roofwindow and these somfy motors.
This all works good most of the time, however sometimes the tilt command is not seen correctly and causes the blinds to go back up.
I have an automation to see when it detecs the blinds are closed so they are tilted in the wanted position. Now they just start to go back up again.

Worst of it all is that most of the time they work as intended, but then all the sudden (when I’m not at home) they decide not to comply again and go up instead of just tilt.

Anyone seen this behaviour?

Kind regards, fantic.