Problem with Episode of a Legend Challenge

Does anyone else have a problem with this?

I actually completed all five chapters on Legendary solo, and the challenge shows as incomplete.

You can see in my online service record that I beat the chapters on Legendary.

This may be a seperate problem, but if I view the challenges from my stats page (https://app.halowaypoint.com/en-us/#Halo4/olanmills/challenges/, NOT https://www.halowaypoint.com/en-us/intel/challenges), the description for Episode of a Legend says, “Complete all missions in chapter ID -1 is invalid. on Legendary difficulty.”

I have the same prob :\

i have the same problemxcept i’ve completed them all in co-op but the challenge does not specify if it has to be done in co-op or solo.

I have the same problem.

I completed them Solo Legendary and didn’t get the challenge. I then repeated the first mission Solo Legendary and was awarded the challenge. It seems as though the servers do not always register correctly, so repeating one or more missions may be necessary. Try doing them in the order you started with.

I don’t think solo/co-op matters as long as you have done it.