Hi,
Thanks for posting in our Q&A forum.
For print to PDF (redirected) issue, please kindly test following and let us know if any help.
1.Check the printer drivers used for the problematic printers and see if any updated versions.
Also try to enable easy print drivers for these printers when remoting to the server.
2.Will print issue occur if use local Microsoft Print to PDF?
3.Please check the status of print spooler and try to restart the service when issue occurrence.
Hope this helps and please help to accept as Answer if the response is useful.
Thanks,
Jenny