Something wrong with overhanged angle

[eternal mason]

Hey guys, I’ve been stuck on an issue for a few days and can’t figure it out.
I’m printing on a Bambu Lab A1 with Bambu Lab 90A TPU.
In the screenshot, it’s just a cut section of the model. When I print it, I get a defect like in the other pics, but the opposite end of the same model prints perfectly fine (when printing whole model).

default:

Temperature: 225°C
Max volumetric speed: 2.5
Retraction: 0.4
Cooling: 100%
Printing with supports enabled

I’ve tried tweaking temps, retraction, cooling, etc. (speed is already low), but nothing really helped. The only thing that improved it a bit was lowering layer height from 0.20 to 0.16.
I’m pretty new to 3D printing and don’t even know what to call this defect to google it properly. Not really sure what’s going on here tbh.

[mild vale]

A lower layer hieght does less material and allows it to cool better.
Try longer max layer time when fans at 100% maybe?
Not entirely sure how that happened either..

[eternal mason]

Thank you for help! The model is already printing very slowly overall. or do you mean something else?

[mild vale]

yes, these two spots in the slicer. (where is says layer time)

volumetric speed is slow enough, but sometimes doesn't solve the issues so you need a more consistent speed. you can use either changing the wall speed or max layer time to achieve that.