2025.3 (218997)
Hi @seemingly 
Thank you for reporting this. Would you be able to share a copy of that element with us? I’ve been testing this, using the latest beta, and I could not reproduce the issue:
A copy of the document would help me pinpoint what is the root cause.
Please send the copy to productsupport@sketch.com.
We look forward to receive it!
Cheers 
No attachments are required. You need to click to enter the sub-element, operate the switch of the sub-element, and after the operation, you will find that there is no effect.
Hey - I was able to reproduce the issue and created steps for our developers to fix.
I could see in the manage overrides section on the symbol source, Apple turned the “visibility” override off. Meaning you shouldn’t be able to hide it in the symbol instance.
But we still show the control in the UI to hide and show, but of course it doesn’t do anything. So the control shouldn’t appear at all because it cannot be toggled.