i had this on my first and second pair the first pair i returned after 10 days due to discomfort also what you describe. second pair received in november as a gift they not knowing my previous experience I didn’t feel comfortable returning them as they were a gift. i only experienced the squelch noise when using small size or smaller using medium resolved the squelch but suffered discomfort. so i ordered a third party set of tips from amazon as a gamble.soulwitt brand not the Comply ones as they wear out in a few months . these Soulwitt versions solved the discomfort and the irritating squelch noise you experience ?? can only put it down too the material of the original tips particularly if you have moisture or persistent ear wax the original smaller tips move around when im eating , talking or yawning etc thats when i had the squelch sound. never had this with airpod pro2 or the third party tips im using now on airpods pro 3 which at times im using 4-6 hours a day without discomfort or squelch