The purchase cost is getting updated just fine. The problem is that UR isn't deciding that it needs to reconsider which item to buy when the price goes too high. EatDrink used to have specific code (that I added) in where I'd cache mall_price before a purchase and if that purchase failed and mall_price stayed the same, add the item to the "skip, don't use this anymore this execution of EatDrink" list (which already existed, but hadn't been adding items in that way before).
The easy-ish way to do it in UR would be to remove items from the restorative_info[item] map (named heal) if they fail the purchase per above check. Should take ~15 minutes to get in without any UR editing knowledge. With planning, the easy fix would just be checking price, post-failure in the purchase function. If it failed, and price stayed the same (note that MMJ and herbs have a price of 100), remove that item. Easy.
Sample code which SHOULD work without appreciably slowing things. This code goes into the purchase function near the end, just before the return false; that finishes it up. Note that I did include the return true and return false that surround the price check, for clarity.
Code:
if(buy(q- for_use(it), it, min(ceil(price*1.25),get_property("autoBuyPriceLimit").to_int())) > 0 || for_use(it) > 0)
return true; // for_use() needs to be checked both before and after that purchase ;)
if(price == ($items[magical mystery juice, Medicinal Herb's medicinal herbs] contains it ? 100 : historical_price(it)))
remove heal[it];
return false;
