PID resets after power cycle!

[PropsToYou]

I';m trying to get my PIDs tuned on my 250 however I';m running into an issue.
I can change all my settings fine on the GCS, and when I click "Save" I get the tick to confirm it';s saved fine, but as I power cycle it all resets everything in the Stabilization tab. Even if I just click disconnect, then reconnect it';s defaulted back to basic settings.

Has anyone experienced this before?

[PropsToYou]

Ok, scratch that. I';ve litterally been at this for the last half an hour trying to get it to save.
First attempt after posting here and it saves fine...
Sigh