I'm working on a part that is quite complex and with a long tree of features and surfaces. I usualy make the control+Q rebuild so I don't have any surprises at the end of the project, but in this case I forgot to do it and each time that I have to go back to make a modification it falls appart. So I go back to solve the problem, make the control+Q and it's ok so I continue to go down with the horizontal bar and correct every problem, and so on making the control+Q. At some point the first problem comes back again, I correct it again in a diferent way, but is always hapening the same thing, and if I insist with the Control+Q diferent errors hapen without I change a thing... I realy can't solve this... do you think the file is corrupted? Should I insist in a diferent way? Start over?

Thank you,

Suzana