This is cross posted from this blog post:
It looks like some licenses downloaded through the Sitefinity.com web site have issues. It also looks like licenses fetched through the web service (which is what Sitefinity's project manager uses) avoid this issue.
Consequently, a short-term workaround is to fetch your 4.2 license by typing your Telerik.com credentials into the Sitefinity Project Manager (as opposed to getting the license manually through the Sitefinity.com web site). However, this solution only works if you have 1 license associated with your account. Anyone who has multiple paid licenses associated with their account will be directed to the Sitefinity.com web site. /:|
This issue will be addressed early tomorrow. In fact, I hope it's already resolved by the time you read this comment.
I'm leaving this forum post here for anyone who encounters this issue and is looking for an explanation or a solution. As mentioned, we plan to get this resolved and addressed very quickly. Consequently, this forum post should only be relevant for a few hours.
Sorry for the inconvenience for any impacted by this.
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