We can reproduce this all the time after we restart the pc with paused WU. FAHclient does something at that point to take all this memory. Dev is aware of it, not sure when the fix will be implemented.
Memory usage usually normalises after a while, or after you finish the WUs
I see. Just out of curiosity, what would be a reasonable, stable memory usage amount for the FAHClient? It appears that it still consumes 1-3GB of memory even after running for a while.