This suggested edit: https://dba.stackexchange.com/suggested-edits/20375 is not returned by the /suggested-edits/{ids} API call:

https://api.stackexchange.com/2.2/suggested-edits/20375?site=dba returns

{"items":[],"has_more":false,"quota_max":300,"quota_remaining":297}

Am I doing something wrong here or is this a bug in the API? Other suggested edits like this one do work.