Operating system: windos 10
Graphics card: 1070
After duplicating these nodegroups they somehow got corrupted and started crashing blender. They were much more complex groups when I duplicated them, I simplified them as much as possible but the effect is still the same. I do not know how to replicate the corruption itself with simpler groups.
Try copy pasting the object in this file or materials or appending them it will crah Blender