Having the same problem here. Suspected Adobe broke something, but I backed out to After Effects 17.0.6 and did not resolve the issue.
Additional troubleshooting step: I attempted to squid a project that previously created a gif successfully. Same broken result
If you are having the problem where it queues but doesn't render, try rendering the queue manually once, then resquirting
That did it. Thanks, GunSquid!
