yeppppp.. you are correct! Thank you so much, I saw them marked green on diagram so I assumed they would be safe to go. Disconnected those and it boots fine. Also makes sense why they work after the boot and not during.

Alright, it turned out that its somehow connected with my gpio's once i disconnected them the booting went ok. Has anyone heard of something like this happening? The sensors are passive and dont have any power going to them, they all share common ground. Since they are reed sensors, this would be eq...

Hey guys, a little stumped. My Pi4 been running fine for about 3 weeks without any issues, I have an SSD drive connected (it gets mounted after boot and OS runs from it, used Toms guide https://www.tomshardware.com/news/boot-raspberry-pi-from-usb,39782.html :to USB3 and a small USB Hub to get Aeotec...