Thanks everybody for your input. i figured it out. i had an interference where the flanges met. i had back way up in the model to fix it, but i got it done.
i have a sheetmetal part which has a bend that i need to unbend. When i use the unfold command it tells me that i have a part with features that cannot be unbent. Specifically the bend that i want to unbend. Does anyone know why this is happening and what the solution is?