maybe hem is auto-archiving the freephg HHs, moving them elsewhere like it does your normal HHs? check the archive folder. if so don't put them in same folder as your normal HHs
if that's not it, i still wouldn't put them there, the bigger the folders you auto-import from, the more the HMImport.exe process will slow down your CPU
it could be a few other things. add an exception for freephg.exe and partygaming.exe to your firewall. check your freephg.ini file looks like
this. then add a shortcut to freephg.exe to startup folder so it runs when you turn on computer. restart and check
icon is on taskbar. or try to open it and check it says it's already running
then open party, open tables, and see if HH files are getting created. if they are, enjoy it working for 10 mins before the inactivity popup kills it and you have to solve that issue too