questions about hapolopus sp. growth and care

Not urgent, so I'm not using the help flair, but let me know if there's anything I need to do or change.

I have a pumpkin patch tarantula sling I adopted just over a year ago. Also several months ago, a larger juvenile c. versicolor I adopted at the same time (different vendors, at an expo) died from impaction. My pumpkin patch is about the size of one of my fingernails right now.

I'm concerned because its abdomen hasn't reduced in size for several weeks now, but its behavior is normal too, like I don't see it rubbing its abdomen with its legs or on the walls. But I don't see evidence of it eliminating waste, either. The other spiders have spots where they poo outside of their burrows, but I don't see any poo in this one's enclosure.

my questions are, how often does this species molt? do I need to be worried (yet) about its health? the last molt date I have recorded was almost a year ago. I haven't seen any molts since then unless I missed it?? I am still offering food and removing it when there isn't interest.

I can't provide pictures right now (not home) but can later if people think it's necessary for advice. please let me know if any further information is needed.