Im not 100% sure if they are related or not, but here is what I have found
There is a maximum HUD text limit per player
(not sure what that limit is)
There is a maximum HUD text limit per lobby
(not sure what that limit is)
For example, 10 huds per person will end up having 10 huds for some people, one person with around half the huds, and everyone else with no huds. This commonly occurs in the xp based f to upgrade lobbies
Also, the number of in world text items has sometimes effected the number of working player huds.
If anyone has more accurate information on these limits and how that effect eachother, that would be very appreciated. Thanks!