Today in ZG I had a raid member which incoming heals were shown on another one.

See the screenshot bellow, I'm casting on Walcom and incoming heal on raid frames are shown on Hugrim

A reload solved the issue

Version: 3050

This bug is reproductible by disconnecting and reconnecting in an Alterac Valley. When people leave and join the AV, the targeting gets shifted.

Should be fixed in v4000. If not its not on my end :P