Posted Feb 21 2013 - 06:15 PM
Some of these I wouldn't class as errors so much as stylistic decisions. #3 is definitely an error, and arguably so is #4 (though there's no reason to automatically assume Bota Magna and Aqua Magna were round when they first split from Bara Magna; they could have changed in shape over time). However, in #1 Vakama's Huna simply appears to be stylized, #5 may have been a deliberate decision since fans who weren't around for the 2004 comics and sets might be more familiar with Dume's movie depiction, and #2 may just be because the artist was asked to use a projectile weapon and liked the Cordak Blaster's design (just looking identical doesn't at all mean it's supposed to be the same weapon; there are dozens of weapons in the BIONICLE sets and story that are identical to other unrelated weapons).
"Inaccuracy" would be a better word than "error", since "error" implies something accidental/unintended. There are plenty of other inaccuracies in the comics, such as the Toa Metru not having the same eye colors as their set depictions and lacking chest plates (since they were based on prototypes). But the number of actual errors is much smaller.