Hello! I've got an error when i try to adaptate ust to an utau. I press "reset" -> "p2p3" -> "p1p4" and then i get this error window. After that programm won't work properly.
Well, I don't think I can. As I noticed, p1p4 makes crossfade smoother and more fitting to syllables(as in utau oto.ini). This problem appeared after windows reinstallation.
P1P4 and P2P3 are functionally the same in terms of envelope shape. The only difference is the placement of the control points, which only matters if you plan to edit envelopes manually.