something goofy going on with pitch shift

working on a 15 second spot and the audio vo was longer then 15 seconds so I sped it up to 115% to fit into the 15 second total run time. but then i added pitch shift so that the vo didnt sound like a chipmunk but then the pitch shift made the vo sound like the panning was all over the place. Or like it kept alternating from mono to stereo. Its hard to describe. but ive never seen pitch shift do this before. it sounds all over the place, something is very wrong. audio source is an mp3. i converted it to wav but the issue still persisted. anyone else experiencing this? adobe premiere 25.5.0 (build 13). MacOS Tahoe 26.0.1.  (I'm willing to show an example of the issue privately to adobe but cannot post this as a public facing video).