Jab Cancel button does not always work as expected

[ThorstenFalk]

Pushing the job cancel button with multiple finetuning jobs is ignored.

[ThorstenFalk]

Currently this issue cannot be reproduced with a stable usecase. Keep an eye on it.

[Nelson-Gon]

Currently this issue cannot be reproduced with a stable usecase. Keep an eye on it.

I am using the latest Fiji on Ubuntu 20.04 and cannot cancel jobs, I often have to close Fiji and start all over again.