What is GameLoop? GameLoop is an Android emulator for PC/Computer by Tencent . It was released in July 2019 . It was first released as Tencent Gaming Buddy to Serve as an official emulator for PUBG Mobile (Players Unknown Battle Grounds Mobile) on PC. How to fix GameLoop Problem 2021 ( Failed to start the emulator. Sorry, only one mobile game (PC Version) can be running at a time. If you have just updated Gameloop, try again later by restarting it or restarting your computer.) ? There is an Easy Solution for this problem. Stick with me I’ll show you how to fix this problem step by step. 1. Check your windows drivers. If your operating systems drivers are out to date that could be the reason for this problem. So, make sure that your operating systems all drivers are up to date. 2. Re-Install Gameloop You need to re-install Gameloop for the solution. 3. Disable Driver Signature Enforcement in Windows 10 To Disable Driver Signature Enforceme