I found the reason in other forums, because I wrote the Local Network Usage Description in plist, but there has been no problem before iOS18, and it can be paired normally, which is strange. Since iOS18, this should be changed to Privacy-Local Network Usage Description.
The problem bothered me for a few days
baiyun
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Post
Replies
Boosts
Views
Activity
Initialize the MTRDeviceController, and the console will output:
Operational browse failure: -65570
I have the same problem as you, it's strange that sometimes the first step pairing fails, but Apple Home always succeeds. Have you solved it?