I set something bad, and I can't find what or where it is, so I'm hoping somebody can point me in the right direction.

This project is .NET 5, though I'm not quite sure if that matters. When stepping through code in a Windows Form, the debugger keeps trying to step into the underlying methods for the controls, the form, and so on. I have no interest in that, as the problem I'm addressing has nothing to do with that. However, the debugger constantly tries, and when it can't find that source (it isn't all loaded on this machine), it asks me for it.

I'm pretty sure I turned this on, and I can't find any setting that will turn it off. In the Options for Debugging, General, there are options for Enable .NET Framework source stepping, which is unchecked, and Enable Just My Code which is checked (and I think that one is not relevant). Those are the only ones that seem somewhat related to the issue. I'm also not quite sure what to call this, so Google is not helpful.

I'm hoping somebody here can tell me how to turn this off.