I experienced an unpleasant issue with it once, in Poland.
In Poland? You? Tell me this story.
By the way: Poland owns a big part of former Germany now - and had to give a big part of former Polish territory to Russia. So the following lines in our anthem from 1841 (more than 100 years older) make not a big sense any longer:
"... Von der Maas bis an die Memel,
Von der Etsch bis an den Belt –
Deutschland, Deutschland über alles,
Über alles in der Welt!"
"... From the Meuse to the Memel,
From the Adige to the Belt -
Germany, Germany above all,
Above everything in the world!"
Meaning: Germany in her concrete borders should be united in only one Germany (and not in 50-200 different independent states and organisations). "Germany" - a national state "Germany" - should be in the own mind "above all" and "above everything" [else] "in the world" ="in our German world". Motor for such an idea had been the rest of the western world : the USA, France, England, Spain, Italy and so on ... . The reality today is it that national states at all are a block in the developement of international structures. It needs today much more multi-national structures and internationals cooperations than in any other moment of world history.
It was by the way a very good decision to use only the third strophe of the German national anthem any longer, the summary of strophe 1+2. But with Nazis and Commies has this nothing to do.