Hello @whadaday 
Thank you for reporting this issue. As far as I know, there’s a known issue with this site’s database dump/import that returns with DK0066 error (which affects mainly for newly created sites).
If you check your local main.log file , and if it shows/mentions something like this:
Error - DK0066: IMPORT_DB_DUMP: Error (1): (ERROR at line 1: Unknown command '\-'.
then it’s the same known issue that has been reported/discussed in this thread , and you may also check/follow that thread for any updates.
We have escalated this with our internal development team, and we are still waiting for them to work on a fix for this, but we do not yet have an ETA on when that will be available (on the next release of DevKinsta most probably). We do appreciate for your patience.
Best regards,
Agus