I'm just processing my first timelapse with XMPs and had no issues:
- copying files from sd to hdd
- Inside LR importing folder from hdd, grid-view (G), selecting all the images (Ctrl-A) of folder
- Select Metadata menue -> Read metadata from files.
- wait a while .... et voila
- exporting to jpg etc... (wait a very long time)

not as fast as ufraw.... but at least no pink highlights.