HitBTC really is a pain in the ass
If I now click on DENT Withdrawel I get shown this notice:

Monitoring subsystem notice

Our monitoring systems show that DENT daemons are not stable now. Either DENT network is highly loaded or our servers are overloaded. We are handling it right now and your coins are safe. However, proceeding with withdrawal right now could lead to your transaction being delayed or stuck, until we manually process it, which in the worst case can take up to 4 weeks.
We apologise for any inconvenience caused.

Perform a withdrawal anyway?