I just found a weird bug where pushing play in the waveform editor seems to corrupt the first note of sfx 63

Steps to reproduce

1. click the "waveform" button in any sfx 0-7 and push spacebar to play
2. view sfx 63 and see that the first note has now changed to a C2 using the waveform instrument that you were just editing

using version 0.2.6b