If you unlock a dog tag, then it doesn't appear in-game or at the end of round summary. I do have the feature on in Options to always show me achievements. I can confirm this also because newly unlocked medals appear in-game and at the end of round summary. I think in previous BFs, newly unlocked dog tags did appear in game and at the end of round summary.
Were dog tags intentionally left out? As somewhat of a completionist, I like to know when I've unlocked a dog tag without having to exit out of a server and check my Awards under Profile. I could manually count, but that's a bit inconvenient.
The animation flashes for a microsecond on your screen and the sound does play but yeah, something in a previous patch messed things up (again).
I don't think new dogtags ever showed up in the EoR screen in BFV, it was a simple way to cut corners
they used to show the same as the medals,but on one of the updates it does appear as a flash.. they have never shown in the update summery as BF1 did.. i just try and check how far ive got,bronze and silver on weapons just happen,gold i keep an eye on