Somewhat OT, but related: My oddity has never reverted to flat leaves, but the colony has always been at the same place which is only bright indirect light. I pulled a few in early summer for transplanting and had three that didn't get planted and remained sitting on my planting table drying out for more than a month. I discovered them and planted them about a month ago. The pot has been if full sun since planting. I noticed today, when checking plants, that one of the three has reverted it's leaves to normal. So just speculating that either the transplanting or change of lighting may have had some bearing on leaf reversion. Lynn, are yours located in full sun?