The video demonstrates it, am I missing some game mechanic or is this a bug? Both two out of the three Eternal Spare Trousers were copied with Invisible Jokers and I'm only using two mods, Lovely and DVPreview.
#Unable to buy new negative jokers after selling negative invisible joker, no space
reef trench
I think I figured it out, the last Invsisible joker I sold was a negative which lead to having 6/5 jokers, this somehow blocks me from buying any new negative jokers until I sell/reduce the count back to 5/5. Bug or intentional? idk
Unable to buy new negative jokers after selling negative invisible joker, no space
obsidian igloo
Negative jokers simply give you plus 1 joker slot, so if having plus 1 joker slot would still not allow you to have the joker, you can't buy it.