IKinema RunTime available to small and indie studios for £99

When you start up the project on an unlicensed machine it should just give you the option to disable the plugin in that instance without any crashes. Do you have any info about the crash you are getting? Anything in the logs etc. I will test on this end. (Also, make sure you are using the latest version of the plugin for your version of unreal from our site. There were some bug fixes that could have been the issue).

As an immediate work around, make sure there is a copy of the plugin in the project for everyone who uses the project. They will be prompted to enter a key when they load unreal, just accept the trial license that it defaults to. If the license has expired, the project will still load but with all RunTime features disabled.