MrMxyzptlk

I have a problem with the latest Open images (I have tried other Open images too but I would like to stick with OpenPli). So here it goes:
I have a USALS positioner, I input all the correct settings, everything works perfectly until I put it on stand by. When I put in stand by after about 1 minute in stand by mode the antena is moved automatically a few degrees to the west. There is no difference on what satellite I leave the antenna/system it is always after one minute the antenna is moved about 10 degrees to the west. This is super annoying because I have a second slave receiver to the system that is my DTH operator's STB and I cannot use it anymore because there is no signal of course. Why is the new Open image doing this? How can I eliminate it?