As of right now, it seems to be impossible to create sftp accounts. This has been a reoccurring problem for the last several days. I get 2 errors. I haven't been able to deduce when I get one vs the other.
The first is "Internal Server Error." The second is "Unable to create the user, please try again."
It turns out that the request that returned a Server Error eventually did create the account several minutes after I submitted the request. The other accounts as of now have not appeared.
I also get the "Internal Server Error" when I try to update the password for an existing sftp account.