The reason why my chat bubble looks like this is because I tried using 9-slice scaling. I couldn’t find too many guides on how to use it properly, and the ones I found were quite vague.
I’ve used the exact same settings you have and it works perfectly fine for me. I’ve uncopylocked the place I used if it would help at all. Could it be a result of some lighting settings you have?
Chat bubbles that use a 9-slice image tend to have this issue because of the UICorner instance inside of BubbleChatConfiguration. I found that setting the CornerRadius to (0, 0) helps