Hi dcameron,
I searched our database to see if there are any other cases like it and it appears there are. So here is the news to get around the problem for now:
1. Have all users who are joined to the project open the project and,
all joined users in the affected project have to do a “Release All”
2. Then try to reserve the Hotlink Manager
In the meantime the developers are working on this to find a long term solution in a forthcoming update.
Please let me know if that does not help.
Best regards,