I have been receiving the Marmot and Broccoli Error Codes since the beginning of April. As far as I know, I have only see these error codes in the Onslaught activity and any of the new Exotic Missions. So far Pantheon has been fine, but this could just be a total coincidence. Regarding all the trouble shooting. Nothing has changed on the system since it was built over 1.5 years ago. There were not any configuration changes regarding hardware. In a basic list of the trouble shooting steps (Some might be out of order): The integrity of the game files has been performed via Steam. Rolled back and installed a previous version of the video driver Verified that every firmware and hardware driver were up to date Uninstalled and Reinstalled the game on the same SSD (NVMe) Uninstalled and Reinstalled the game on a different SSD (NVMe) Replaced the RAM in the machine with brand new. NVidia RTX 3080 TI Driver Version: 552.22 Driver Type: DCH Video BIOS Version: 94.02.71.00.CA