Random Payabled batches not posting through

So we have a client where some random payable batches will not post through the GL and here is what we checked

1. Checked posting under TOOLS | SETUP | POSTING | POSTING checked 

Checked the actual origin of " Payables TRX Entry" and was set to post TO and THROUGH and Transaction level posting was turned off

2. AA is NOT activated in the company 

3. No batch approvals

4. User who was posting was a power user

5 User reports they did not receive any error.

Its easy to go in and just post the batch , it wasn't in batch recovery or anything just sitting in GP waiting to be posted. I can see in the tables it was saved to a batch

Anything else to check?  I

The issue is we cannot re-create it, the user can go and post and it will post through. Later.

Thanks

Michael Zerr