Can't cancel job

I have WebODM running on an Ubuntu machine and recently updated it with the WebODM Server Installer (rev 04/08/19). I don’t remember the rev prior to that but since I updated the server, I can’t cancel jobs. When I click on the cancel button, it never actually disappears. It shows “cancelling…” with the hourglass next to it.

Here’s a screenshot:

I’ve found that I can delete the entire project from the web interface, just not specific tasks. Has anyone else run into this and is there a way around that? I’ve gone into the folders to see if I can simply remove the specific folders but it’s difficult to determine which folders belong to specific projects/tasks.

Yes I have this problem regularly when cancelling or deleting tasks mid-upload or mid-process. I raised a bug report here that you may wish to contribute to:

If you restart the computer, are you able to get them unstuck?

No, they remain in the cancelling/deleting state. The only way to get them ‘unstuck’ is to delete the whole project.