Issues with SkillTreeItemsPro

Hi,

For some reason, the STIP buffs and XP injections stopped working correctly a few weeks ago - only config change on my part was reducing the duration of buffs.

If you list them for sale in exchange for whatever item you want, they work fine with no issues, and you receive the items normally. But if you set the exact same item as the currency/payment, I can't purchase anything and get the pop-up "You cannot afford this purchase," even though I have the required items in my inventory.

The settings look correct on my part too, since I haven't changed those at all:

CVS:
    {
      "currencyType": "Item",
      "itemID": -1622660759,
      "skinID": 3329896239,
      "displayName": "Common Quantum Shard [XP: 7000]",
      "defaultDisplayName": null,
      "text": "common quantum shard",
      "armorSlots": 0,
      "conditionPercentage": 0.0,
      "hasCondition": false,
      "maxStack": 1
    },
______________________________

STIP:
      "common quantum shard": {
        "shortname": "xmas.present.large",
        "skinID": 3329896239,
        "effects": [
          {
            "min": 7000.0,
            "max": 7000.0,
            "type": "XPInjection",
            "preventXpModifiers": true
          }
        ]
      },

Is the displayname capitalized in the config, or is it lower case?

"displayName": "Common Quantum Shard [XP: 7000]",

I tried setting everything to lowercase and uppercase instead, but that doesn't make any difference, and it still tells me I cannot afford this purchase. Weirdly enough, it worked for almost a year and only stopped working recently.

Equally, I have the hardy planters set up with the first letter of each word in uppercase, and those have no issues at all