Deep Research Broken. Defaulting to Pro instead

3 times now, on 2 different devices, my deep research has not been starting. Its happened on windows chatgpt web, mac chatgpt web, and mac chatgpt desktop. i have sent a deep research with pro selected since im on the $200 pro plan, text only prompt, and send it. i come back to it later and it ran as a regular “pro” thinking response. its very annoying because i rely on this to work and wait a long time for it. This is really the main reason i have the $200 instead of $100 plan beacuse of the better deep research so its just frustrating when its been giving me issues. Its not just today its happened multiple times this week in different places.