When you first land at Ukaizo, the Guardian initiates dialogue but after the dialogue is concluded, it appears to be invisible and does not initiate combat. Adra Animats spawn and crawl out of the water into the area, but despawn a second or two later, repeating in an infinite spawn/climb up/despawn loop. I am able to leave the area and proceed, but no combat occurs.
Link to autosave upon landing:
https://drive.google.com/file/d/1Wk3qbUfeoB-Y4HZiwIH1ZmsWDCr4ZQXl/view?usp=sharing
Save prior to sailing to Ukaizo:
https://drive.google.com/file/d/1iVuEbZ91ijMahD4SRfQWcaAgzIJPTDC2/view?usp=sharing