Trapped in the map.

The game character is stuck in a trap, during the second chapter's storyline. Normally, I would encounter a sandstorm and return to town. But now, whether I try to use the teleport back, click on the checkpoint, or go through the stairs, nothing works—no response at all. I've tried re-entering and also restarting the character from this segment.

In the second chapter, the task is to chase the boss, and then encounter sandstorms. I had to go back to make the horn, and after activating a portal from the sandy area, I returned to the caravan. Through the caravan's portal, I went back to the sandy area, but I couldn't get out anymore, whether it was the stairs in the map to return to the previous map, resetting the respawn point, or going back to the caravan through the portal.