This one may not necessarily be a bug, as this is related to the nature of culling. If it is not, please let me know if there is an alternative method the licensee could use here in order to track a culled actor.
Download the licensee repro here - [Link Removed]
Open + PIE
The value on screen is correct when the cube is in view, but is lost completely when the cube is not in view.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-116775 in the post.