Hope you can help this issue.
Everything was ok on the production until one month ago when I was getting failed to run errors for the majority of my workflows. They would eventually run so this wasn't a huge issue. Now workflow tasks are being cancelled midway through a workflow. The tasks sometimes run through ok and others times cancel, they're no obvious pattern. Also I am using all Nintex out of the box features.
Any ideas help would be much appreciated. Thank You.