Korean Encoding error in MMS preview

[Me0wzz]

Device on test: Google Pixel 6, Samsung Galaxy Note 8

On main screen, I can find that there are some broken message previews for "Korean MMS". Instead of showing messages, It shows unique unicode characters. SMS preview works fine.

I'll attach screenshots as soon as possible.

[tibbi]

could you also please paste some text for reproducing it?

[Me0wzz]

I sent to myself.

For SMS, It shows properly.

For MMS, It shows some broken unicode characters.

[Me0wzz]

Hello, @tibbi. Thanks for your quick reply.

MMS string that I used is

안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕안녕

("안녕" means "hi" in korean)

SMS string that I used is 안녕하세요 ("안녕하세요" means "hello" in korean)

[tibbi]

if you send Hello just once, it works well?

[Me0wzz]

@tibbi yes. According to my test results and message history, Only MMS makes this issue.

[tibbi]

so you have to add an image too, or you mean that the message length itself switches the message to a MMS?

[Me0wzz]

Both of them. Adding Image also makes this issue. Both Long text MMS and File attached MMS cause this issue. For File attached MMS, Message title set as default to "제목없음" which means "no title".

[tibbi]

okay, guess it can be reproduced with any long nonascii text, like emojis too