Still no luck with 1.1.9. So far I have had 1.1.8 running with just a few small hangups, but still tweaking.
I gave up on Cura tho & switched over to Mattercontrol (https://www.matterhackers.com/store/l/mattercontrol/sk/MKZGTDW6).
I am running the beta version - there is a preset configuration for the DP5, but you will need to add the G29 P5 command tho in the gcode section to get the bed leveling to work properly (beta issue I assume).
The app is free - you are pressured to register, but you can just skip that at setup. The company's business plan is to give users the option to order supplies from them, so they seem to update regularly.
Will post when/if I get it all sorted, but spare time has been scarce lately. I can put the 1.1.8 up if you want as is, but I offer no guarantees.