It's a config the pack author/MyM officials set at the beginning. You can't change it unless you play singleplayer.
Not sure if this is still the thing, but when I played ag1 and I wanted to do tc I had to use the direct connect button to be able to send aspects over to the teable.
OH YES! i completely forgot about the lobby! that explains it all, yes, follow tonalom's advice, directly connect to the AG1 server