Hi,
I don't think it is linked to the update.
Note that your product has variants. If you set prices in the variants and in the main product, then the price of the main product will be displayed on the listing and the price of the currently selected variant will be selected on the product page.
So it's totally possible to get the result you describe without any bug. It's actually the normal way it would work in the situation I described.
Now, I don't know how you configured your product and its variants, as you didn't provide screenshots of their settings.
You didn't provide the URL of the product either so I can't check the situation directly on the website.
Could you provide these ?