Bug Report: ChatGPT iOS doesn't render LaTeX mathematical expressions
`Steps to Reproduce`
- Open app
- Ask it to write function derivative or any other math task
`Expected Result`
The expression should be formatted and rendered properly
`Actual Result`
Most of times, the expression isn't picked up by the filter at all. It's raw text in $$ closures. When it was still working, the apostrophe character (for example in derivatives) and Polish diacriticals weren't shown, just as if there was nothing in that position.
`Environment`
iOS 26.4 Beta 3, ChatGPT iOS (Latest as of 7 Mar 2026), English language
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