I switched from using Oveture PETG to Pushplastic PETG and now the second layer does not seem to adhere. It seems the main seperation is form the fore head rest area. Not sure if this is an issue with the file or if that push plastics petg is not as "sticky". I ran about 2 kgs with the 2 and 5 stack files with the overture plastic. But with pushplastic. I have tired adjsuting temps and now on to 4 failure with the 2 stack.
I have been mainly using paticks version 2x_PETG_Prusa_RC3_FAST.3mf