The difference between stable version and user-defined version when uploading in QGC

After uploading the user-defined-version-code by QGC,the QGC becomes unstable and it flash back. However, if the stable or master version is uploaded,it is fine. What is the matter? So how can I build the code like stable version?What is the difference between stable version and user-defined version when uploading in QGC. By the way, I just use ‘’ make px4_fmu-v6c_default ‘’ to build the code.

Appears you are using PX4 firmware. This is the ArduPilot forum.

Best to ask your question over here: