AC load on phoenix 12 | 500 not working - linux appimage

I have an small off-grid installation : solar panel → mppt 100 | 20 → batt → phoenix12 | 500.
i am reading the information on a linux computer with the last app-image 6.41 via the Direct.Ve cable (i am also using it to read information of the mppt succesfully). The installation is 4 years old. the firmware is the last one (v1.39) and i can switch it off from the app via the cable.

Everything are working just fine except the AC load indicator not showing the power and the % of load.

i am aware in am not the only one having this issue (at least 2 years ago), but i wanted to know if a solution was made or a workaround is working.

I remember it was working at the beginning. should i downgrade the firmware ? where can i found old firmware images ?

thx for your time

You can find the old images on Victron Professional. You’ll need to create an account if you don’t already have one.

Don’t update if the system is working.