The horn sounds that were heard during the raid remains unused for the seek horn found in the inventory.

Steps to reproduce:

1.Go to the inventory

2.Find the horn types in the combat section and choost the type "Seek"

3. Press the horn in the inventory slot (after exiting the creative inventory), and it would only play one sound

If this isn't a bug, then that means the Ominous horn maybe missing from Bedrock Edition or was not implemented during the village and pillage update (Bedrock Only)