Discovery failing with “Missing Pattern Windows OS - Desktops” even after multiple pattern synch

[shubham007]

Has anyone faced an issue where Discovery fails with:

Discovery using patterns could not be executed due to missing pattern Windows OS - Desktops

even though:

• Pattern exists and is Active
• MID Server is Up/Validated
• Pattern synchronization was triggered multiple times
• Tried syncing from both MID Server and exact pattern record
• Restarted MID service as well

Still seeing the same error during discovery.

Would appreciate any pointers if someone has seen this before, especially around MID cache/pattern sync inconsistencies.