I also had the same problem I lost half a crop due to my neighbour using a sprinkler on her garden while my plants were on the balcony, I had JUST gotten the plants officially introduced and growing with the proper PH levels, afterwards they had been of course drowned while I spent the day away...
Hey all, for anyone who may have this problem where suddenly they seem to be growing fine again, I found when you top the plants just quickly pinching the tips, sometimes I was leaving the very bottom of the leaves still attached to the stem, THESE were the leaves that were growing in a oval...