Yeah, bummer. Temp is fine obviously, you may just have nutrient deficiencies as a result of pH lockout. Drainage has never been a problem for me running straight soil with perlite or straight coco fiber. I'd double check the nutes you are running to be sure you are using them in the proper proportions, maybe drop the pH down a bit more to compensate for the high pH of the chips, flush out your pots for a single watering, and then try again...

If they look really bad then cut your losses and start over? No sense in wasting power on a bad grow, imo...