If i try 4 msps, 1 bass,2-guitar,3-accordion,4-sax, they are mixing togeter, the notes from one enters in the other but if i load these msps twice, 1-bass,2-bass,3-guitar,4-gitar etc. the first msp has the mentioned problem but the second works fine, loading them twice i lose space and RAM memory and it is small,fine from MSP sampler works only on plus and not on minus.What should i do?