Raid Blocked when far away from own baseNot An Issue
A player gets raid blocked if he is miles away from his base and someone is raiding it.
Even though "distance": 100.0
I have this same issue
Every raid block is gated by a distance check.

However, as stated in the documentation...

The raid "participants" whom may be blocked
  • The owner of the base
  • The nearby clan-mates of the owner
  • The nearby friends of the owner
  • The raid initiator
  • The nearby clan-mates of the raid initiator
  • The nearby friends of the raid initiator
  • Anyone nearby (including raiders and bystanders)
My fault. I tested again. Seems to work correctly.
Locked automatically