No, I can't say I've ever noticed this. Nor did I notice it with the real UMAT last year. Not saying it's definitely not the case, but I definitely have never noticed it. There are several 'versions' of the UMAT test booklet, so not everyone has the questions in the same order, anyway. If you're doing the exam straight through from 1-134 and find the questions towards the end more difficult, my guess would be it's an artifact of cognitive fatigue more than anything built into the test questions themselves. Happy to hear other opinions on this, as I don't think it's a topic that has been raised previously.