A while back, there was a thread where some people reported problems with 32G cards on Beagle*s:
This is based on a very small sample size, of course. I don’t think a lot of people out there are using 32G cards with Beagle*s, because of their cost.
There has also been some discussion about the SD card’s “Class” rating: you don’t always get what you pay for with “Class 10” cards: https://groups.google.com/d/topic/beagleboard/wApfFp095hw/discussion
Unfortunately, the bottom line is that it’s hard to know in advance whether a particular card will work well on a Beaglebone: trial and error is generally needed.