I didn't have this problem previously so I'm not sure if I just ticked a box accidentally - but for some reason after I edit my keyframes in Lightroom and save metadata, when I load the metadata in LRTimelapse nothing is changing.  The keyframes still look the same as they did prior to any edits in Lightroom. 

Any ideas?

Probably you are not working on the same folder in both programs. Please check this faq: http://forum.lrtimelapse.com/Thread-keyf...vise-versa

Thanks very much.  Following the FAQ seemed to have fixed the problem.  It wasn't an issue with folders so maybe just needing to clear something in the metadata?  It seems to be working OK now!