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Several tasks are failing to complete because of "Instance Unavailable". While I've seen this before, it has become a daily occurrence in the past week.
Can anyone explain why this happens and how I can prevent it?
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Hello Marc,
It is not so out-of-common for tasks in the task queue to fail for various reason. This happens, and there are detailed documentation how to deal with this situation and devise a strategy, namely on the "Retrying Failed Tasks" page.
You can set retry parameters as detailed on that documentation page: