this happened many times and still cant get the reason,
once it was my fault because i was tring to save the patch on a windows directory and without admin rigths the .v4p was never save, but this time its diferent
i just started i new proyect, i made 2 nodes, when i dock them toguether and i rezised bouth windows to be sure that they keep dock next time i open the proyect, the file its save, but when i open it, its empty… but the code its still on the v4p!
i was able to get the proyect back by renaiming the root02~.xml to root02.v4p . but still i cant get the work around. any help ?