Thanks for letting me know! I will look into the EndNote problem asap (I am currently working on custom bibkey format strings, which take some time). Mendeley so far had no problem with the RIS output, but things might have changed.

EDIT: Fixed the problem. It seems like Endnote is stricter about the spacing between identifier and the hyphen. It should work in the next version which comes out the end of this week.

Thanks.
Unfortunately, websites change from time to time, breaking some of the site adjusters (there is no big team behind this, so I cannot follow every change happening out there at the publisher's websites). I am currently in a control pass on dynamic citation functionality. You can always suggest/report websites to me that aren't working properly, and I see to it as soon as real life work permits. Go to the github or just contact me by email if you wish.

Thanks, the typo will be fixed in 0.78. The date is put to access date whenever it does not find the date using its fixed default search kernel, which is optimized towards journal abstract pages. For security reasons, I keep this default kernel to a bare minimum (I don't want to read any kind of hidden and possibly malicious html source)