Shattered flexplate!

I had one brake on me one time and I think what happened was wen the trans was out the flex plate got dropped and landed on its edge at the bolt hole.any ways you could see were it hit the floor and never thought any more of it put it in and a week later it came apart know whether that had any thing to do with it or not it still broke and came apart.I do know they are tempered steel so I'm sure something that thin is probably pretty sensitive it the only one I have dropped and the only one I have broke and I have put allot of them in.If something like that happened could be your answer just a thought...........Artie