PPTP to RB333 with Hotspot active

Maybe stupid question, I have several routers with Mikrotik, I have no problem to access internal networks via PPTP on routers with inactive Hotspot, on routers with active Hotspot I can connect PPTP server on MT, but I cannot ping or access machines on internal network. I would expect some firewall rule is missing?
Thanks

Probably resolved, it is necessary to use IP address from Hotspot-Hosts-To Address (not Address).