I made a thread before about freezing on this fight when using a controller.
I just fought him again in the monolith and can confirm this has been fixed, so thanks for that!
I seem to have forgotten to mention this in the bug report thread, but his health bar was also missing when fighting him with a controller, this still appears to be the case.
I don’t believe phase 2 is supposed to have a health bar, but both phase 1 and 3 have no health bar.