Plopsy help?

There is a bug report for it on AHQ, is that what you mean with research?

I could sell on Plopsy despite no timer showing. The item's background changed tint, from light blue I think, to light pink. A number of days past, and suddenly I got a notice. Did try a couple of times, same result. My sims lived in a house with an accessible mail box.

I've never had a timer for Plopsy, just the pink background. It can take a bit to ramp up, though. And having too much listed can slow things down as you "flood the market" I also don't relist after a listing expires, but just sell direct through the inventory - but I understand if that's not an option.

I haven't tried using Plopsy in an apartment, though.

(As a side note, maybe look at a freelancer job as well? I think the freelancer careers are fixed.)

I use plopsy regularly in an apartment and it doesn't have a timer. It changes from light pink to light blue and then i click on it and choose "sell with plopsy" and my sim goes to the mailbox and gets the money.

It did happen to me that two "sell with plopsy" interactions showed in a blue object,but i realize now that it was a mod problem. I can't identify the mod that was causing it though, cause i've deleted a lot of mods at once.