The high res mesh that I am trying to remesh has a poly count of 2097453. For my Zremesher options, I set to Target Polygons Count 5, Adapt, Adaptive size 50, and curves strength 50. When I hit ZRemesher, I keep getting this message:
ERROR: Remeshing error encountered. Remeshing aborted.
Has anyone run across this issue? How did you solve the problem? 
Please help.
Haven’t encountered that error, but i usually avoid remeshing at that high a polycount. My workflow is usually something like this :
1 duplicate the highres and delete all it’s higher subdiv levels, so that it has a low polycount
2 remesh that
3 project onto initial highres using project all
4 remesh again
5 project
…
rinse and repeat untill i get something i like