Please see attached files.
I have 2 holes at 30 degrees, that need to extend and intersect 2 holes below.
For whatever reason, when I extend my cut extrude the hole disappears.
Since you use "move fave" to align the hole so the hole can't be thru the flange
It's be much easy if you can use "revolve" feature to create hole at 30 degrees
I'd suggest you abandon the Move Face features and delete the original hole. Recreate it as a Revolved Cut, as Christian Chu suggested, or create a plane perpendicular to the desired axis of the hole and sketch on it for an Extruded Cut.
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