I heard back from Customer Service at Lee Valley the next morning and they had their Veritas representative take a look at my photos.
Most of the cutters are within their tolerances, but the 1/8" and 1/4" were just outside, so they agreed to send me a new 1/8" and 1/4".
The customer service rep, Marty, took some calipers into the stock room and measured each 1/4" groove blade until he found one that measured exactly 1/4". This is why I like Lee Valley. They put in the extra effort to solve your problem where other companies might just throw another blade into a box without taking a second glance.
I haven't had a chance to test out my current 1/4" tongue cutter with the new 1/4" groove blade, but it's on the list.