In a recent SDK update from DJI, the Enterprise Smart Controller on an M300 set up with a dual gimbal configuration would frequently run out of processing power and cause green screen or other video issues making the feed unusable.
To address this issue, we have temporarily disabled the FPV feed, as it was generally not used.
In addition, the M300 is particular about the ports that sensors are connected to when using dual gimbal setups, such as the H20T and Z15 spotlight combination. The H20T should always be in port 1 in this configuration.
If issues persist and you are using a dual gimbal setup, make sure the H20T is in port 1. If you are using other sensors, try swapping their port.