Botanically named Tradescantia spathacea 'Dwarf Tricolor' has upright smooth leaves that are variegated with white stripes on the upper side. The clumping plant looks pink as the lower side of the leaves are in a light shade of purple.

After growing this plant for some time, one day as I was watering the plant, I noticed that the whole of the older rosette turned muted green. There were no more white on the upper side of the leaves. The pic below shows the affected rosette that was growing under my porch.

I have another Tricolor Tradescantia clump growing out in open under full sun is also affected.

Even the small rosette that was growing out from the same stem was strangely in muted green too.

Both rosettes have definitely reverted to the colour of its parent plant.  

After cutting off one the affected rosettes, I dunk it into some water for it to root. It rooted in just a couple of days. Oh, it is such a fast growing plant! After ten days in water and there are already plenty of roots growing out from the stem...

Do you notice reversion in variegated plants in your garden?