BUG : Copilot unusable on Xcode ?

[gully99]

I am using version 0.46.159. In Agent mode, it completely malfunctions in remembering the file it is working on compared to the actual content of the file.
If there are multiple sections of the file to update, it modifies the first one, BUT it behaves as if it doesn't apply this modification to the content it has in memory and starts from this initial content to apply the second modification.
And so on for all subsequent modifications. So in the end, only the last part of the source file is modified.
The only workaround I found is to switch the agent mode to Ask mode, asking it to display all the code it needs to modify so that I can then manually perform the source code updates myself...
Does anyone have a real solution to this problem?

[m-j6gi]

I suspect it’s the same issue as in this ticket. I’m using version 0.46.159, and Claude Sonnet 4.5 behaves very erratically. Sometimes it makes 40–50 requests and changes because after each new change is entered, the previous changes get deleted. That, in turn, causes errors it then tries to fix, and it ends up stuck in a kind of infinite loop.