@DanThomas et al:
Version 8 is really like a version 1.0 -- it is clean rewrite, mostly to deal with Mojave issues, but also to deal with limitations of PF7. It has had, and still does, many growing pains. Depending on your usage, you may, or may not, find PF8 acceptable.
We have a lengthy discussion here for those that are interested:
To Path Finder or Not to Path Finder