Why does it seem to change product prices on frontend?

Hi,

I’m using Costs of Goods for our webshop. However when logged in it changes the price of the products on the front-end. It seems only when logged in. But the price change visually on the front-end isn’t needed and can only cause confusion. I don’t know what causes this, nor can I find out what the calculation is for this.

This product is normally 59,95 but is in sale 49,95. When logged in I see a new price which is 41,28 (the costs of the goods are 15). Why am I seeing this 41,28 and not just the normal way of the product display with the sale price.

I do not need to see anything change visually on the front-end.

https://bbqoutside.visualwerkt.nl/accessoires/tools/thermometers/laserliner-thermocontrol-air/