What wallet you use?
Are you on the latest wallet version?
What do you mean sending dash btc?
Are you sending dash on the bitcoin address?
Anyway be sure to have the wallet updated to the newest version as a sender and receiver end.
David, are you using the newest version of the wallet?
Have you tried to rescan the blockchain?
I can see that the tx went through and is on the address you wanted to send to:
David, just talked with the iOS dev about your case and there is an issue indeed.
The fix is planned to be rolled out in the end of this week.