Reason: "I can't complete a mission because the agents can't be sent (green crystals are full)
Just make it to mod menu, it should be fine.".
Checked by myself
I had 0 problems so far. I unlocked 3 or 4 new regions, reached level 5 almost 6, send several agents and speed them up, leveled up a lot of stuff, bought stuff from the shop etc.
Proof:
Emulator, Mumu Player 12 Version 4.1.32 ( 3729 ) Android 12.0, rooted & patched with Magisk: