Never for my core, but I have mistyped as a different wing before.
I typed as a 4w5 for a time when I first came across the enneagram because I almost always test as one due to my very introverted, hermit-like self. I never thought a 3 wing was a possibility because of the various descriptions depicting 4w3s as extroverted and dramatic to where they come off a bit like a 7, which I do not relate to at all.
My behavior is more aligned with a 4w5 and I can relate to 4w5s a lot for that reason, plus a large number of artists I'm fascinated with are 4w5s themselves. So it was a toss-up for me, and I still wonder if I can be a balanced wing, but deep down my desires and fears are more closely aligned with a core 3 rather than a core 5. I do like learning and accumulating knowledge from areas of my interest, but it's not as high of a priority for me than achieving something for myself in the long run. I find knowledge for the sake of knowledge a waste if you don't make something big out if it. So that is why I believe I am a 4w3, but a very introverted one.
I also have to take note that I am an sp/sx in instinctual stacking and an artist that works alone often, so that is why I tend to be a lot more introverted than the typical 4w3. I have a tendency to keep to myself than seek out various group organizations and am uncomfortable about networking (something I admit I can't be bothered to do, although I know I'm going to have to force myself eventually, as that is the name of the game in this modern era when one is involved in a creative profession).
In addition, I think most 4w3 descriptions coincide with the so variant, since 3 seems very dominant so in nature, which is why I don't relate to those descriptions much as they seem a bit amplified in the 3 department. My more friendly, image conscious demeanor comes from my 3 wing and from having 9w1 in my tritype. I am also not as detached as a 5 wing would be, since admittedly I do care to some degree what people think of me.
And I believe in staying true to one's craft and avoiding commercialism as much as possible, as many 4w3 descriptions state that they are a bit shallower compared to their 4w5 counterparts. I believe that one can be sincere and authentic and make their art into a career if they have the talent and creativity to boot. I am a 4 afterall, so there has to be that 'authentic' factor before 'selling out.'
In the end, it all comes down to basic desires and fears and what resonates with you the most.