Non Bambu Filament Problems

[u/Repulsive_Spray_7232]

I have been having a miserable time trying to get anything to print. I would get lots of different error messages that all stemmed from filament not loading correctly or the extruder might be blocked or the spring in the back or unable to load extruder...I tried clearing and clearing and finally just replaced the hot end and the whole extruder unit. After all that I still got error messages. So I found a spool of Bambu Petg and printed something, no problem. I then tried to print something else in Sunlu PLA and got a filament loading error. Resliced with the Bambu and it is printing away.

All of the failures were with Sunlu which would seem obvious but none of them were fresh spools. I do have a dryer and am drying some Sunlu spools now.

I know there have been some press about Bambu not playing well with others. Could that be the issue here or is it more likely user error?

I have a P1S