Thank you so much de0u, I have tried booting connected to power, no difference. I don't believe it's a heat issue because I can stay in Recovery Mode forever without a reboot. It only reboots when booting into the OS, that's what leads me to believe it's a bad update, corrupt OS etc. If I had the bootloader unlocked I would be ok and could reflash to stock then back to Graphene. I'm an IT Pro so basic troubleshooting tells me it's the OS or filesystem corrupt/missing files. This all started after the OTA update version 2023022300 and when I sideloaded that same update I started getting the error my OS was corrupt at the bootloader screen, when I sideloaded with the latest OTA the error about corruption disappeared. This is why I wanted to try sideloading the last version prior to the issue but I don't where to download it from.