All new jobs are queued - already tried the other fixes

Every time I try to start an new job it is immediately queued. The only way to remove the job is to use the tricks from the previous posts to directly edit the job status in the database:
http://discuss.cryosparc.com/t/all-new-jobs-get-queued-dont-run/356
http://discuss.cryosparc.com/t/jobs-queued-but-fail-to-run/1452

I have 125 GB or available RAM and two GTX1080 GPUs available so the resources should be there to run the jobs.