Yes, yours is expressing itself. The variegation on PPP is chimeric mericlinal. The mutated cells causing the pink do not extend through all the cell layers of the meristem, and can be sporadically arranged on the meristem. There is generally only one cell genotype...either pink, green (or white or yellow in other plants) that occupies an actual pretty small part of the outer cell layers. The ratio of one can be much higher than the other. This makes this type of variegation extremely unstable. It can come and go, or it can totally disappear.
The mutations causing the big patches of variegation are the most unstable. The 'marbled' PPP that they are producing now in TC is more stable, compared it like a Monstera Thai Constellation (stable) and a Monstera albo-variegata (unstable)
