Reverting to Veg

What can cause a plant to start putting out branches and leaves after it has flowers developing?
Hard water? Too much pH down? Thanks for any input!

Light leaking and interrupted dark cycles will do it. Is it 100% dark at night? Even a small led from an appliance will fuck with it

I would like to see the pic of that.....How long in flower?
Pete's right you know....That could be it.

If you have an abundance of nitrogen this to can cause growth in flower. Assuming you are not referring to the normal stretch phase of flower development. To combat this flush with ph'd water a few days before switching to 12/12 or before starting flower nutes