There are many possible reasons why you might have air bubbles, but the two most likely are
1. Hydrogen gas produced by your SWCG

2. A small suction leak UPSTREAM of your pump.
However, if you can see into the return stream (@ "the chlorinator") than usually the bubbles would be visible.
So . . . test for hydrogen by disconnecting the power to the SWCG. If that stops the bubbles . . . you've found the source!

I am amazed; is your Intex SWCG still producing chlorine after 4 years? You can test this by grabbing a sample of the water returning to the pool with the SWCG in an ON state, and comparing it with water on the opposite side of the pool.

Regarding your cleaner . . . I've got nothing. I've never even seen one of those units. I can tell you that cleaners in general are twitchy and often require irritating persnickety adjustments. Anyhow, once you eliminate the bubbles, if the cleaner problem persists, I'd recommend calling Intex. They do answer the phone, last I checked!