When I use the "Collect All Income" button when I have 26 pets with jobs, I get a "bad gateway" error from Cloudflare. It only happens when I have more than 25 pets; I've gotten the error in the past but then stopped getting when I adopted out some pets. Now that I'm back up to 26 with jobs, I'm getting the error again.
I assume the income does get collected successfully because my sP balance goes up, but I don't know if any of the random stat boosts are happening since I can't see the confirmation page.
Here's a screenshot of what I'm seeing:

Oooh interesting. I haven't collected recently with under 25 pets The one time in the last couple of weeks that it didn't give me the CloudFlare error page was right after I had promoted a pet.