If you open "C:/Program/Files/DAZ/Bryce/6.1/Docs/Bryce61_KnownIssues.htm"  scrolling down you will find the following text.

"When animating keyframes in the different labs, applying keyframes to all timelines does not apply the keyframes to the main timeline. There is not workaround at present. Affected versions: All."

That pretty much describes the problem.  Since the keyframes are not applied, changes in the material lab dont take effect and the end result is no animation is done.