Weight not syncing from MyFitnessPal to Garmin (2025)

I have this issue for a few years now and it's bothering me and getting aggravating. I have a Renpho scale which syncs the weight to MFP and from MFP it should be synced to Garmin. I have disconnected and reconnected both several times but data from Garmin (like steps and activities) is getting through to MFP but my weight isn't getting through from MFP to Garmin. This is the only reason I use MFP now as unfortunately my Renpho scale can't connect to Garmin directly. And a Garmin-scale is too expensive.