Yeah, perhaps something went wrong with the writing of the data or Logic is very specific about which meta it understands and which formats it accepts , but other apps can see it fine. I wrote it as both id3 and bw, ixml etc. and no love. I can definitely write it into the filename itself, but that would mean altering the file name which isn't always an option since old projects using those samples won't find the file. Keep in mind I'm doing a batch process for thousands of files as well. It also doesn't explain why the 'analysis' options indicated in the manual aren't present in the menu itself.
Would also be nice to see 'delimiter' as an option as well so that the 'auto' mode isn't just based on character position.
As an aside, what happened to Redmatica? Keymap did a lot of this stuff and seems nothing has really made it into Logic yet unless I've missed something.