Roblox not restoring when closed (Cortex)

Roblox is the main game i play on my pc. Roblox was auto added to my games library so i was sure it would work. I opened the game and it boosted it, but when i closed it, it didnt restore/unboost. The only time it restored was when i opened it again. And because thats the only time it restores, the booster only works every other time. Please help with this issue!