HTML tags displayed as literal text instead of rendering a list

Summary:
In a ChatGPT web session, system output containing <ul><li> HTML tags was displayed literally as text instead of rendering as a list.

Expected behavior:
ChatGPT should either properly render lists as bullet points or safely sanitize tags to plain text without showing raw HTML.

Observed behavior:
Raw tags (<ul><li>) were displayed in the response.

Context:
Web client, standard chat mode, using GPT-4o.

Impact:
Reduces readability and professionalism of output. Indicates a rendering pipeline handling issue.

Additional comment:
Would be ideal if the system automatically converted such structures into safe plaintext bullet points without exposing tags.