SYNC buttons don't stay lit when sync lock is ON

[BSDguy389]

Bug Description

For the Roland DJ-202
If I toggle sync lock (using the last .xml I just committed), sync lock appears lit on the GUI but not on the controller.

Version

2.4.0

OS

Ubuntu 22.04

[BSDguy389]

These bugs don't appear in the DJ-505 mapping. Maybe we can take some parts of this code and adapt it to our project?