Editor reports crashes and terminates for exceptions that would otherwise be cleared by structured exception handlers

In 4.25.1, I added a vectored exception handler to capture unhandled exceptions to the Editor process. This handler runs too soon. It doesn't let the structured exception handlers run first where many non-fatal exceptions should be handled.

The problem may happen when the user tries to open a file with the operating system dialog, which comes with a bunch of plugin that 'Windows Explorer' embeds. If one of those plugin fires and exception, it is captured by our process and crash report is fired while it shouldn't.

The following crash groups are likely false ones:

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

[Link Removed]

No easy step to reproduce known.

Upgrading to Unreal 4.25.1 crashes the engine whenever trying to use file explorer to choose location