AI Debugging: No NavData

One day my AI just broke, I cant remember why or what I did but recently its become a problem, I believe it may have been due to upgrading but I am not sure however, after hours of trial and error I discovered that the AI has no NavData in the debugger. I replicated the AI in another project and it works perfectly (Screenshots below) using the default NavData. I was wondering if anyone knows a way to fix this?

(All newly created AI’s have this identical problem, I do have a Nav Mesh and all the basics and this has worked perfectly in the past)

Broken : Screenshot - c2284c7c2d91e96aa16930824a19eaa6 - Gyazo

Working : Screenshot - c6c07aa7a3cb13b00f1458b691eb1620 - Gyazo

Found where I was going wrong, I had apparently unticked the ‘Can be Main Nav Data’ of the recastNavMesh, Its working again now!