Multivariant as Radiobutton list hangs !

[brandiware]

Hi there,

I am using VirtueMart 3.0.16 and Joomla 3.5.1.
Since the last update of VM, Multivariants shown as radiobuttons
make the product detail view hang, showing the load circle ! If I switch radiobuttons off,
the default dropdown lists work fine.
Thanks for any idea on this. I have updated virtually all other SW in the surrounding - no help.

Cheers
brandiware