Why did my paphs roots stop growing

[SlipperGirl]

I have a paph venustum that I bought in January in bloom and with a new growth started it bloomed for a few weeks then the bloom came off, it continued to grow new leaves but no roots until spring I started to see lots of new roots I think five but could be wrong, the roots just started to poke out then they stopped they still have not grown and its been months, it is still growing new leaves, does anyone know why its roots are not growing

I have it inside under lights if you want I can take some pics and post them but didn't know if you would need them.

thanks for any help you can give me.