"complete ALL time trials" achievement glitch

[machII]

Hey everyone i've encountered a problem where i've completed every time trial. it even shows up on my gamercard. and the only achievement left to get is to complete all time trials..What the?????????

[Monk Monk 06]

did you also complete the final boss? that one can easily be missed because it has no rewards n such so ppl tend to over look the fact that it has a time trail.

[machII]

Yeah i did absolutely everything

[machII]

Yeah i know it doesnt have a achievement for the last boss but i guarantee its all done.

[Mulsiphix]

Did you do it legit or did you use the time trial glitch to complete the levels with ease? If you used the glitch then that may be your problem. The main problem with using any glitch or exploit is that they are unreliable and could have unforseen consequences like the situation you have described.