I think i've got it this time. I was able to recreate the corrupt save from overloading Bodahn (Camp) and then from overloading the Tranquil (Wonders of Thedas) on a different playthrough than my other corrupted game. Once again, no dlc, no cheats.
It comes down to the total "capacity" number (I like to think of it as "weight") of the objects in the vendors inventory. Basically add up all the weighted items in the inventory. From looking at the inventory you come up with the following:
- under "Weapons" tab: each individual item, except arrows and bolts, has a weight of 1. Say 5 crossbows are in one slot, total weight = 5. For arrows and bolts, no matter how many of each, the weight = 1 for each slot used. 74 fire arrows = 1(if all in same slot).
- under "Armor" tab: each individual item has a weight of 1.
- under "Accessories" tab: each individual item has a weight of 1.
- under "Useable Items" tab: individual items do NOT count towards the total, only each slot counts as 1. Just like arrows and bolts.
- under "Crafting" tab: individual items do NOT count towards the total, only each slot counts as 1.
- under "Other" tab: Runes - each individual rune counts as 1. Gifts - each individual gift counts as 1. Gems - each gem does NOT count, only the slot as 1. Each Silk Carpet, Silver Chalice, Engraved Silver Bowl, and Fancy Vase count as 1. Each Private Document, Blank Vellum, Werewolf Pelt, Drake Scale, and Wolf Pelt do NOT count, only the slot does as 1. (I don't know about other objects under this tab as I didn't use them).
- under "Junk" tab: follows the same rule as if it were under it's normal tab.
You basically see all this when you purchase something from a vendor. The first item you purchase will always create a new slot in your inventory and increase your characters "capacity" number by 1. If you purchase one more of the same item, your capacity number will go up by 1 if the item has weight, or it will stay the same if the item has no weight.
Anyway, after that confusing mess, when you add up all the correct items and slots you'll come up with the current capacity number or weight of the vendors inventory. You want this number to be 548 or below. I've found that both Bodahn and the Tranquil at Wonders of Thedas have maximum capacity numbers of 548.(I'd say all vendors are probably the same but not sure since I haven't checked). Go over this by just one and your next save will be corrupt.
One thing you have to watch for is how a vendors inventory handles items you just sold him. As an example, say a vendors inventory capacity number is currently 400. Say you go and sell him 75 different individual items, many of which he already has in his inventory and many of which have no weight like poultices, balms, and crafting stuff. Each different item will now take up its own slot under the "Junk" tab of the vendor. Each slot has a weight of 1 so his new current capacity number is 475. You then leave the area and go around killing stuff for the next couple of hours. You decide to go back and sell your new loot to the same vendor. You sell him 75 more different individual items. These new items each take up an individual slot under "Junk". Since this is your very next visit to the same vendor, the previous 75 items you sold will now be under the vendors "Buy Back" tab(which I don't think means squat towards the total capacity number) and under whatever tab you sold them from. If you look you'll notice that each of the previous 75 will still be in its own separate slot.(Say you sold a health poultice and the vendor already had 8 health poultices in his inventory. The one you sold will be shown in its own separate slot right below the vendors 8). The previous 75 and the current 75 items all have their own separate slots, therefore , the current capacity number would be 550. If you save now or anytime before leaving the area and returning, your save will be corrupt. However, if you leave the area and then return, the first batch of 75 items you sold will now be merged with the vendors stock which lowers the capacity number for the items that were weightless.(the 1 health poultice has merged with his 8, making 9 in one slot). A save now will be fine as long as enough items merged so the capacity number went to 548 or below. (I apologize for being terrible at explaining things.)
Not sure if this is the cause of a lot of the problems because overloading a vendor this much takes some work. I'm curious to know how many crystals people are selling from the glitch. Anyway, if anyone is able to overload a different vendor, let us hear the results. Hope this helps somebody.