It's not an issue I'm having, but I can confirm that that is what is happening. And that's probably an issue to take up with Xsolla. Probably just going to have to suffer through your purchasing.
Just tried some, and same, Light Essence does not go into Cart.But as you implied, you can still buy them individually.(are you wanting to buy all 24, at 9.99 a pop, all at once ?)Same (cart issue) with TB Free Daily Crystal (didn’t go into Cart).(The other 3 Free items went into Cart fine, the Weekly, and the 2 Web Bonus Points items)(not sure why someone would want to use the Cart for those Free items though)