PLA animated object morph

Hello,
I’m trying to make a seamless loop of some PLA cached point animation using Pose Morph.
I followed a few tutorials, and I just can’t get it to work.
The point animation is PLA based rather than point cache tag.
I had this working a few days ago, now, using exact same technique, its not working.
So either there’s some sort of glitch, or there’s something I’ve missed this time around (I deleted the old scene file since I was overwriting prototyping like mad)
my scene file: https://dl.dropboxusercontent.com/u/24304389/PLA test_2.c4d
I’ve set it up according to the tutorials, the target pose strength goes to 100% at frame 90. whats strange is that if I pause the time at 90f mark, then I click on the pose morph tag, the geometry suddenly jumps into the init state, but it doesn’t when I hit play, or render.
Anyone had this issue before?
I baked the geometry using a plugin called PLA mate, it would be good to see if the issue happens with other PLA meshes.
the tutorial I was referring to:
https://vimeo.com/143859179 (30 mins in)
https://vimeo.com/78684377- this one helped me get it to work a few days ago by setting the priorities, although that’s not helping anymore!?
My deduction is that there is either some sort of bug/issue, or there’s something seemingly unrelated or not obvious which would affect the tag..