MA Level range bug

I sat the other morning creating a rather long epic tale (using the accumulative knowledge i gained from making several others and seeing the feedback). This was the one if you like. The one i wanted to keep and use.

After several long and stressful hours i managed to write and flesh out the arc ready for publishing. I finally hit the button... And an error appeared: "Level range invalid". After extensive testing i've come to find that there is no possible issue with the level range (no errors, mobs or range clashes in any missions) and to double check and pinpoint the issue i deleted each mission in separate copies to try and find the problem arc only to find that removing them did not remove the error.

Now i'm stuck with the best of my work, and its unpublishable. Nice.

This is a wierd bug which turns up from time to time, do you have mobs from a restricted group (i.e. Hellions lvls 1-14) and mobs from an unrestricted group (I.e. Arachnos lvls 1-54) in the same mission?

It occasionally flags the level ranges wrong if this happens, usually with ally's or escorts.