Beam emitter on translucent material background bug?

Hello,

By accident i noticed that beam emitter has strange rendering behavior on translucent material background. The best is to check out this video:

I dont know how to describe it well so i hope video helps with imagine. Beam emitter is interrupted on translucent material meshes in background (that brown/black area with wall have translucent material set...)

Is this BUG or something wrong with rendering settings?