UPDATE: The issue has been addressed with Beta 1.0.12.2 released. Here is how to change to the the BETA stream.
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There is currently an issue where Cosmos Elite users will get a crash when running applications that were built using Unreal Engine 4.24 or 4.25.
We are now tracking the issue and will report back whenever there is an official fix for it.
However, you can apply a temporary workaround for the issue as reported here: https://answers.unrealengine.com/questions/953996/does-the-unreal-engine-support-the-cosmos-elite.html
The workaround is quite simple but it