Yobit is quite a fishy exchange so it is possible that it has been previously reported by users to crypto reputation databases somewhere on the internet, which is why Spectrocoin is now withholding it.
Direct deposit is probably what triggered this tbh. It would have been better to withdraw to your wallet first and then send it to spectrocoin.
Thank you for advice to use a wallet first. And you're right about fishy Yobit as a trigger. I have a bit new info, will update my post today later or tomorrow.