QNH stuck at 1008 after installed and uninstalled REX Weather Force? Did I miss something?

My sim was all good and working perfectly.
I have recently purchased and installed REX. it caused me major fps issue so i decided to remove it and uninstall it. unfortunately my altimeter is now stuck permanently at QNH 1008, the b key does only work when switching from 1008 to 1013 at FL180. nothing else. it now seems all world airports are at QNH 1008. anybody with similar issue? if so, any fix??


Maybe the weather settings are stuck at a preset instead of live weather. I know REX requires you to choose the clear weather preset in order to inject its weather.