After upgrading to the latest version Algolia Search 1.15.0 the Number of queued jobs never cleared will never empty, it just keeps growing and growing. Apparently, the indexes are being updated but the queue is not being flushed.
Thanks for bringing this to our attention. We’ll respond to this in the Github issue you created:
I have a similar problem with the queue growing indefinitely. I also have a ridiculous number of category reindex ops to go with it, as described in my post:
Magento 1 constant category reindex operations