Infuriating clicks

Mac OS Catalina 10.15.7
Audacity 3.1.3
Blue Yeti mike

My recordings are producing infuriating clicks, but only with specific words. Please listen to the attached wav (the clicks first appear in the aup3 files) ‘Mortals’ ends with clicks, but ‘deities’ doesn’t! I tried every possible buffer length from 30 to 500. Short buffers make it even clickier, but longer buffers do not solve the problem. I have turned everything off and rebooted. I have come back to it after a week away. Still clicking. Any help/suggestions warmly welcome. (Please don’t suggest avoiding the problem words - the whole book is about mortals and dieties!)

On further experimentation, any vowel followed by -ts results in clicks: cats, hats, mats, etc. Plain ts seems OK, and ss by itself is definitely OK.