(Sorry for the big delay) As Frank Post replied, review the spring arm properties; not only that, check my blueprint examples and take a look to the few properties I changed in the actor and its components (which can be spotted thanks to the small yellow undo arrows) and try to understand the reason behind each change.
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Check the example map, section 2; PhysicsVolumes are required.
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Thanks for posting, I’d like to know about projects that use my plugin 