Don't know but it doesn't look nice.
sure bro!! and the fucking problem is that is has contaminated other 4 mother by 2 clone (plant'pics) situated in vegetative room.
Over watering?
Is there any chance you can take a clean cutting from the mothers? Don't want to loose those babies.
Hopefully you can get it sorted.
I mean, what are we even looking at in those pics? Is that a bud?
For help dealing with garden related issues, take a clear pic (Lights Off!) of the affected area of the plant, and a full plant pic. Next add as many details about your grow, temps, equipment, etc.
We would love to help but if we can't see anything it is nearly impossible to make accurate assessments.
I'll tell you how it will end.