Hello Niklas,
Thanks for reaching out to us regarding the Unreal plugin.
Updates for 4.25 were delayed by the work we are putting into an upcoming Motive release. We hope to release Motive 3.0 soon, and should be providing updates to our plugins at that time.
If you have any more questions about this, please feel free to reach out to us directly.
Best,
Steven
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Steven Andrews
OptiTrack | Senior Customer Support Engineer
help.naturalpoint.com
support@optitrack.com