ReactiveCocoa | Cocoa framework and Obj-C dynamism bindings | Reactive Programming library

I don't know if the reason I ran into this is the same as yours, but here's what I discovered, in case this helps anyone else.

Before manually notarizing your app (using electron-notarize), make sure the certificate type you're signing your app with is correct. You specifically need a Developer ID Application certificate (the last one):

I had been using Apple Distribution before, and notarization failed because of it. The list of files you're seeing are probably the first few files Apple checked, and they were signed with an incorrect type of certificate (don't quote me on this), and so it failed.

Either way, once I generated an Developer ID Application certificate, defined my entitlements this way:

I think the reason your second flatMap is never executed is that saveSignal never sends a value; it just finishes with a completed event or an error event. That means map will never be called, and no values will ever be passed to your second flatMap. You can fix it by doing something like this:

I'm don't know exactly what successfullyUploaded and failedToUpload are doing in your code, but presumably you're keeping track of successes and failures to provide some kind of live progress UI. This is how I would structure it:

I'm not completely familiar with ReactiveSwift/ReactiveCocoa, but based on your description, you can use .scan, which seems to be a more general function than combinePrevious.

It takes an initial result - which you can make into a tuple -, and a closure with the stored value and the current value, and returns a new stored value - in your case, a tuple with (previous, current):

So the answer is, you need to use a genrule() to process your DTrace files It should look like