As far as I know, they are closing properly. She is doing so and will confirm this with her co-worker tomorrow.

It seems to be happening pretty randomly - they'll be working and then the batches are "gone" then they run DIC and they reappear. They've been up and running in this environment for a few years and this is something new. (And frustrating!)

Op Locks - Enabled.
SMB Settings - SMB2

The Data Integrity check ALWAYS shows 4 errors in the Batch Control file. The rebuild puts the batches back.

Update -- here is another issue:

When she was posting the batch, she got this error:

"Error 4104 occurred when attempting to append record to Check Rec Batch Header."

So, this time, the vendors were updated and GL batches were created but the Check Rec was not updated.

Weird.