Are you running on an AMD CPU PC? Check your current BIOS and if it is the newest, and if you are on X570, make sure if PBO is enabled then try turning it off. When PBO is enabled, it seems like it's introducing some instability on this latest BIOS. I had a negative voltage offset which has been fine for some time, however with the new BIOS it's causing instabilities in other programs. I changed this offset back to "0" and the other programs are now more stable again, and the Marmot errors haven't happened as frequently. But can't say (and don't expect) the problem's now fixed; it's too soon to know for certain.

[quote]Error Code: MARMOT This error occurs when the Destiny 2 game files have been corrupted and need to be repaired or verified. For steps to repair the game files on each supported PC platform, please see below. Steam Close Destiny 2 Right click on Destiny 2 on Steam Select "Properties" and "Local Files" Select "Verify Integrity of Game Files" Restart Destiny 2 Microsoft Store on PC Close Destiny 2 Open "Apps & Features" in Windows Settings Select Destiny 2 Select "Advanced Options" and run "Repair" Restart Destiny 2 If issues persist players are advised to fully uninstall and reinstall Destiny 2.[/quote]