WowAce

What steps will reproduce the problem?
During Prince, Blood Queen

What is the expected output? What do you see instead?
I expect to see a range circle around myself during the events that trigger rangecheck.

looking at your code, the rangecheckall function excludes the player from having the effect(circle) placed on themselves.
It makes better sense to include the player or at least have a different colored circle so the player can place themselves accordingly.
Maybe the fact that the player is not standing inside another players circle is enough or is the intended function, but some reference for players range would be nice.

So set up a range marker in the settings. Better suggestion is to be able to associate a personal range marker with an encounter. IE you create a 12 yard marker and set it to show during DBS or such.