Como corregir temas mal analizados

Hola estoy viendo q el programa no analiza bien los temas y salen descuadrados,eso a q se debe?

Use reanalysis after you do a first analysis

Always run two sets in analysis

First one is just to build waveforms based on bpm info contained in the files

Second reanalysis is the key to having accurate bpm and by extension correct grids

Y como se hace eso?