Yes, we're getting the same thing after upgrading from 9.04.507A to 9.05.702A. Epicor support basically told us to suck it up and delete the files, it will be fixed in E10 (SCR 128946: BAQ Designer - a large number of BAQ99999999999.p files created and not removed).
Since I run an automatic nightly reboot anyway, I just added a line to the batch file that deletes them.
You’re not alone,
—In firstname.lastname@example.org, <email@example.com> wrote:
We just recently upgraded from 607 to 702A, and since the upgrade, we are getting thousands and thousands of temp files in the EpicorData folder daily. To the tune of 120,000+ per day. Anyone else on 702A experiencing the same thing?