Major Bug in the battle with Imshael (Fort Suledin)

hello everybody! I'm having difficulty progressing in the game because last night I got into a dialogue with a semi boss from the Suledin fort. I realized that I wasn't going to be able to defeat him and I loaded again and after leaving the conversation with him I used the wizard's teleport ability to go through the door I entered. After exploring the entire map I went back to this boss fight but now the barrier won't let me enter the boss. I managed to pass through the barrier using the tactical camera, and then I used the character that passed through the barrier to pull the others (due to the distance). The boss behaves in a strange way and continues to look the same as it did in the beginning. But it doesn't change as I defeat him, after completely eliminating him the barriers remain active but now I'm trapped in the arena where I fought him and I can't get out.