My pro subscription ended and now my project is hanging on "pending"

I tried clicking “activate for free” in the cloud build account options and nothing happened. I’ve been waiting over a half hour. The last build was 4 days ago for this project, 2 days ago for any project.

Any ideas on how to get this going?

Update: It waited over an hour before starting. Today I tried another build (last build was 8 hrs before) and it sat at pending for over an hour and a half before I canceled and tried again. That was a few minutes ago, but the new build is also still hanging on pending.

When you’re on the free tier, you’re put into a queue, with paying tiers getting priority. It can take a few hours to get a build out on Free, depending how busy the system is

That’s great to know, but why isn’t that explained anywhere in the description of the different levels of cloud build?