About 6 minutes in, there is a dead clone with smoke coming out of his chest, on the lift into the pit on Mandalore. The smoke coming out of the clone doesn't move, even though the smoke in the surrounding area does.
When confronting Maul and his Mandalorians, Ahsoka is able to tap a button on her bracer to signal Rex for help. At the end of Old Friends Not Forgotten (2020), the tunnels were blocking any signal from getting to Ahsoka, preventing Bo Katan from warning her of Maul's trap.