Thanks for reaching out. I'd like to better understand exactly where you're getting stuck. Is Photoshop starting the rotation process but not completing it? Could you also share a few more details?
Is this happening only with this specific file, or with other files as well?
Please go to Help > System Info in Photoshop, copy the information, and paste it here.
For more details on the Rotate Objects, check out this page:
Thanks, Srishti Bali | Community & Engagement Strategist, Digital Imaging | Adobe