Crash error while using FPS Monitor Software

What this problem is related to? (e.g. Game / Launcher / Website / etc. ): Game.

Describe the problem: Every time i go alt+tab and back running FPS Monitor the game crashes

What was the expected behavior?:

List the steps that occurred before the problem appeared:

  1. Run FPS Monitor.
  2. Run the game.
  3. Alt+tab.
  4. Go back to the game window.

Can you reproduce the problem?: Yes.

Operating System, Browser version, Antivirus, or any other related platform information (if relevant): Antivirus: Windows Security. The game is installed on HDD.

Screenshots/Videos (if available):

Looks like the tool didn’t request the buffer lock properly.
We’re not going to support 3rd party tools like this. I’d recommend to find a better tool.