Hi,
That sounds correct.
However, not enough to conclude on anything. I'm suspecting there is something else you're not telling me. For example, if you've unpublished the 2 variants of the product, then the characteristic selector would not display on the product page since there wouldn't be any variants available. Same if you would have a "quantity" of 0 in them or in the main product, or if you have price of 0 for that product and the "display add to cart button for free produts" setting is deactivated in the HikaShop configuration.
Also, with the "Display values on listings" setting activated in the settings of the characteristic, you should see the yes / no values on the listing where that product is listed on the frontend. However, I don't see any product with that on your website products listings.
I also checked the product code of several products on your shop but I couldn't find the product with the code CL-530 on your website. Could you provide the URL of that product ?
Second, could you provide screenshots of all the settings of the product and of the variants ? That way, I could have a better picture of the situation to be able to tell you what you're missing. Because if I do the same I told you on my end, I do get the characteristic selector on the product page.