Xcode is already installed, but it keeps showing the “install components” screen — anyone else?

My native language is not English, so apologies if I say anything wrong.

(The screenshot is for illustration only.)

I’m currently using Xcode 16.4 (16F6). Inside Xcode, macOS 15.5 is shown as built-in, and the Predictive Code Completion Model is already installed.

But even though I already installed Xcode before, and even ran the simulator components once, in the past few days whenever I open a project or run the simulator, this “Select the components you want to get started with” screen suddenly pops up again.

At the bottom it even shows “installed,” but I can’t do anything else except click Install. When I click it, it says “Installing system components,” but it finishes very quickly.

I just want to know why this keeps happening.

The only things I did recently were updating to macOS 26 and installing Xcode Command Line Tools 26. Could these be related? Do I need to worry about this?

Thanks!

Xcode is already installed, but it keeps showing the “install components” screen — anyone else?
 
 
Q