Licensee also posted on Asnwerhub here, https://answers.unrealengine.com/questions/220787/bug-net-cull-distance-doesnt-work-when-the-player.html
Also Reproduced in Main Promotable-CL-2535351 & Releases/4.8/Promoted-CL-253144
When a player is derived from a pawn based blueprint, the Net Cull Distance does not work, but when derived from Character Blueprint the Net Cull Distance works
RESULTS: 3 White Sphere never appear
EXPECTED: 3 White Sphere appear.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-14949 in the post.