Guitar Pro was working fine until late last year. Then I had to reinstall it due to some random issues (and me not checking the synth level )

Problem is that the files dont play on the beat unless its all in midi. Add another problem to that is that the midi sounds are playing the incorrect note ie gp plays A not at 440Hz but at like 437-ish

Pls help. Thanks

Searched up both on google and the bar
i have a modest rig which consists of guitar related stuff
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my band : Fragments.