When I click “Toggle Conveyor Belts”, I no longer see the baggage on the underground conveyor belts. Previously, these were visible.
I suggest reporting the bug in Jira 
I reported over a month ago. No reply. No fix.
Remember the issue number?
No. .
Went back all the way to January and i can’t seem to be able to find that report
I’ll await the new UI and add this bug to the dozens that will be created by the new UI update.
Sorry to say, but this is a feature.
https://forum.apoglabs.com/t/changelogs-25/6723/16?u=jasperwillem
Jira link;
If you select the baggage claims area or the baggage handling station you will get the green disks that show you where the luggage is though.