I have exactly the same problem. Also tried it on the local Apache server - to no avail.

I found it elsewhere on the Web that index.html won't work properly without the Apache rewrite rules mentioned in the WWDC session "Host and automate your DocC documentation". To be honest, I find it very limiting. For example, we are not allowed to change the settings at the internal Web server that our company uses for documentation, so we are not able to implement these rewrite rules.

I am also interested in an answer to this very question. Could not find an answer on the Internet yet, and the behavior is the same with Xcode 13 beta 2.

I believe that it might be the same problem that Xcode IDE has: FB9447729 (You can find the details on openradar).

I also experience this problem. See it with XCode 14.0, XCode 14.0.1, and with XCode 14.1 beta 3

Drastic measure (to make it at least somewhat usable): defaults write com.apple.dt.Xcode IDEIndexDisable -bool true

Seems to be solved in XCode 14.1 RC

I opened the feedback: https://feedbackassistant.apple.com/feedback/11709574 (Unfortunately our project is under NDA, but if you have an example project where the problem can be reproduced, please create another feedback and attach the example).

XCode 14.1 RC2 - the problem is still there. Is there still anything we can do? Xcode is completely unusable with this problem not being solved.

In our case it was Check Point Firewall.app that was blocking the device pairing process. Unfortunately we had to find this by a long trial and error process since there was no proper logging from Xcode (even with verbose logging enabled).

The problem is still present in Xcode 16 RC. I filed the radar FB15120391. Please do too, if you can.