@Trampa, thank you so much for your help.
Actually it’s a two parts issue.
First, the shrink solder sleeve seals are not very good. Some of them performed cold joints.
I put this type of connector again, but I took more care. Now it works. I used 26 connectors of this type for the PSYCHOFRAME, and I didn’t really want to do all the soldering. If if I had to start over, I would only do real welds.
Second, I can not get sensor detection with FW5.2 and FW5.3. I get a timeout error every time. I works only with 5.1.
I have to disconnect sensors to make FOC detection works with FW5.2 and FW5.3 (sensorless).