OK... so here's my workflow:

- I initialised
- I did keyframes wizard
- Saved

Now I'm in LR 5.... I made some changes to the keyframes only (graduated filter - standard one, exposure and some mid-tones)

- select Gride
- Select all (still just LRT keyframes)
- Save metdata to files

Back to LRT 3

- Reload
- No change ....

It does look like the yellow line now has a spike in it at my keyframe, which wasn't there before - but there are no changes to the files....

Any help is greatly appreciated.
Neil

The Preview will not visibly reflect the changes. Seems everything is alright. The curve changes at the keyframes, you apply the transition - the curves will now connect the keyframes - that's normal.
The previews don't get rendered in LRTimelapse - this would just take too long!