Only a blocker in case other 18.3 users will have the issue.  If this is resolved in later release of 18.3, please upgrade FB.

Note:  I am able to load invoices when I select a specific transaction date or date range.  But if I leave the date criteria to default it will time out.

Steps:

1.  Sales > F12 > Batch Printing > Click Detail

Issue:  Invoices not loading in Batch Printing.  The console error timing out 30 sec

Accepted: Batch printing data should be displayed.