Velux KLF200 with somfy IO screen (solar) position reported incorrectly

[rpiLovers]

since a few weeks the position of my somfy io (solar) screens do not report the correct position. The electric powered screens work fine. The position in the compleet open position (normally 100%) now returns 4% Completely open is still 0%. My automation is not working anymore due to the position error. Does someone have the same issue?

I m running myvelux 2.9.13 HA version 2024.8.2 but in the former version problem was also there.

Hope someone can help how to correct this.

screens are fully open in this screenshot