Unifi Debian Controller Specific Version

Hello all having a bit of an issue trying to create a new vm on specific controller version. Wanting to test 6.x upgrade before blasting it out. And keep running into dependency issues that when I try to resolve it installed 6.0.43 over the targeted 5.12.72. Any advice on this would be greatly appreciated.

Started from scratch and still getting Mongo dB errors sorry for screenshot lol