We haven’t had any report about this issue, it could be environmental. Please see below some suggestions.
– May be you can try to use ZENworks to install Formativ.
– May be you need to log-in as administrator then try to install the products.
– Does this behaviour appear on all machine, few machine or specific user?
– If the behaviour appear on a specific machine/user then may be you need install it manually.
Hope this helps.