Hello,
For FMB630 it is not possible to configure Manual CAN2. Manual CAN2 uses CODEC16 protocol, which is not supported by base firmware version. It is our mistake for implementing MCAN2 in the settings. In the newest firmware and software versions Manual CAN2 is removed, but this version is not released now.
I suggest to use Manual CAN1 for now. We are sorry for all issues You faced.
If You have any questions, feel free to ask.
Best Regards