17.2.1 audio slow and now not linking propperly

terrible issue. everything worked normally in prior resolve studio 17. thought i finished a project so updagted software and jumping back in to make a new requested edit all audio through the 34episodes are playing back at slow mo and super deep voices. the wave forms visually match up but the audio does not. after replacing the clip i was able to get that clip to playback at proper speed (audio wise, visually there is no issue) but now its horribly out of sync and even when i get it in sync (very difficult the audio waveforms dont match whats being heard) the clip ends about 10minutes earlier.
-ive tried exporting project and reimporting
-replacing footage added new issue
-cleared cache
-changed cache location just in case
-tried different framerates in sequences (though that should not be the case it worked fine in prior 17 version)
-tried export to see if it would carry through. it does.
other thoughts....
mac pro on mojave 10.14.6
new projects i create have no issues.
-ive tried exporting project and reimporting
-replacing footage added new issue
-cleared cache
-changed cache location just in case
-tried different framerates in sequences (though that should not be the case it worked fine in prior 17 version)
-tried export to see if it would carry through. it does.
other thoughts....
mac pro on mojave 10.14.6
new projects i create have no issues.