Say I'm trying to publish an Instagram post that has too many (over 30) hashtags in it. If I publish it as a normal feed post I get a proper error code and message back (Too many tags). If I publish it as a carousel post, I instead get an unknown error with no information as to why the error occurred. (if I lower the hashtag count to 30 the post succeeds so I know that that's the true cause).

Is anyone else seeing this at all?

I've tried checking the status of the carousel container after creating it (results in a Unsupported get request error), and publishing the carousel without checking the status (results in an Unknown error)