I just updated from 3.04 to 3.06 and found that the product price was not updating when you added additional custom fields' price mods. I reverted back (re-installed) 3.04 and they are working fine again now.
Of course this could be due to the custom fields plug-in I am using... But again a warning to make sure you back up your data and try updates in an offline version of your site before going live..
Has anyone else found this issue in 3.06?
I found the same thing after upgrading from VirtueMart 2.6.17 to VirtueMart 3.0.8. Price value reflects custom field value in the shopping cart but not on the product category or details page when toggled like previous versions do.
VM3.0.8 does show price updates with variants in the product details page, but this may be template dependent. FO working example see http://demo.virtuemart.net/wear/h20-jacket-detail
You're right Kelvyn -
It was template based. I'm using an override to the products sublayout. I'll need to dig into that to see what I did to disable that feature.