Tevya

Not only does Affinity not seem to have them, it won't open them from Illustrator. I opened a design that used them, and it's showing those layers as black! : (  
I was hoping to quit Ps and Ai, replacing with Affinity Photo and Designer. But this might not be possible without support for this. Darn! I was so hopeful.

Hi, going into sys prefs > trackpad and disabling pinch-to-zoom then enabling it again worked for me. 
I found this on Reddit: 
 
 
It suggests that it could be a conflict with Better Touch Tool (in my case) or similar apps like Magnet, etc.
Here's my issue though: this doesn't happen in any other apps! It doesn't happen in Illustrator, Photoshop, Chrome, etc. It only affects Affinity Designer (I don't use Photo) for me. So maybe the BTT devs can help, but it seems like it's an Affinity issue that needs to be fixed on their end!

Thanks for this tip on the Fill Mode @MEB I was running into this as well. I'd never had it fail to work like this before. But changing the bottom object to Alternate Fill Mode fixed it.

I already fixed it using the Divide command. So I'm good. Thanks.

For now, anytime I need to provide a file as an AI (or even a good PDF) , I'll just create the artwork in CorelDRAW because I can't get anything out of Designer, at least not a print-friendly scalable vector. I don't dare think about trying to creating something for a large print job like a banner.
Sadly this means I have to run Win10 on my mac just for CorelDRAW, which is stupid, but you do what you have to do.

I'm using the trial to assess if we can switch from Photoshop and Illustrator to Affinity. So far this is the only issue we've encountered. Sometimes we need to produce Illustrator files for printers.
I 2nd that: PLEASE get a proper export/save function to AI format. It imports them just great (as far as I can tell), why not export them as well?