[Solved] the driver has moved from Toupcam to Omegon cameras for only Rpi versions of Ekos/INDI. On Linux PC versions the driver is still in Toupcam. Another explanation is that the driver in Toupcam, in RPi case is a lot buggy and by chance the Omegon one fits to the Risingcam.
But how did we wasn't awared about it ?