I'm having the same problem. And 1 other player (confirmed) that is also on the server. I tried deleting my tablet.dat but the problem is still there.
What is happening currently:
Put 'item' in on left : no EMC added to the count, nothing shows on the right
Burn 'item' : nothing happens, item gone.
- close tablet and reopen and the burn value is there.
- when items are produced and EMC is 0, the type is locked. Even if the tablet closed / opened or star put in.
- star not absorbing burned EMC
Anyone have any ideas on what might be the cause?