Woocommerce prices showing inconsistently in shop view

I am having a sample sale in my shop and while in individual products the sale vs. regular prices show, But in the product archive view (full shop items list) only the crossed out regular price shows on hover! I know this is probably simple and just css, but I don’t know what css! Actually noticing now that some items do show sales price only! ??? weird and inconsistent… my site was originally designed to show Product info on hover.

I think what’s going on is shop is showing sale prices on variable Items, but not showing the marked down prices next to the original prices on Simple Products. I am on X 5.1.0 and waiting for today’s backup to complete before updating. Everything else is up to date.
Thanks for the help

Hi There,

Please add the following CSS under Customizer > Custom > Global CSS:

.woocommerce li.product .entry-header .price>ins>.amount {
    color: #000;
}