Hello, new to PSO2. I had this same problem for a few hours leveling my first character. I would start up the mission. clear my way to the back, click on the teleport thingy to enter the boss area, Zone in just fine, (2/3 sec load time) but no cutscene of the boss popping out of the ground, and also stuck in said room with no way to drop a teleport thingy. Only way to exit was to log out and back in. so I did what Anduril said and I ended up starting the game from the default launcher using there file checker. then launching it with PSO2's default launcher with no VPN running. logged in and it worked just fine. keep in mind i didnt reinstall the english patch and I was doing it solo. ill add the english patch later and see if it still bugged.. till then, hope this helps anyone with this same problem.