I had painstakingly combined actions on the NLA editor in the first few seconds of in my animation. After working on it a fair bit more i decided to preview the whole thing from the start. I noticed that my first few seconds of animation were no longer working. I checked the NLA editor and the strips were still there as they should be, but not having any effect.
However, when i select a strip and it turns green, i scrub the timeline then and the Action is animating as it should, albeit for only 1 loop (it is set to loop a few times but edit mode green only lets you see the one original loop).
I checked the influence - all fine. I’m stumped!