Seems like the accent here is wrong. (https://www.japandict.com/%E9%9F%93%E5%9B%BD#entry-1216170) NHK accent dictionary says the accent is on the first mora.
Hi aiy
Thank you for reporting this error. It was already fixed few days ago, but I still haven't updated the database. It should appear correctly soon.
Best
aiy this issue should be fixed now
