I just installed 10.14 - started Parallels and tried to copy a simple text file from the 10.14 desktop to my Snow Leopard server (10.6.8) ... the copy never finished, as a matter of fact it appears never to start. Filed a bug report.
Hi @SterlingG, tried to replicate the issue, works okay on my machine. Might be an issue with Parallels Tools, our Support Team will contact you soon.