Hi Devine_sir
I had a similar problem with my website, I have not changed anything since my last woocommerce update, so today I changed the price and then suddenly there was no price on the product. It drove me crazy, but I figured the solution of my problem, before I used to add the price like 1,99 (with a comma) but now we have to use 1.99 (with a dot). That was the problem for me.
