If you want random nonsense, sorry to jump shows here, but Stargate SG1 had about six different pronunciations of Goa'uld.
I thought about the same example when I read OP. And how in Babylon 5 one of guest characters kept calling Ivanova "Ai-vanova". I expected Ivanova to correct her, thinking it was in the script, but she didn't, which means the actress just was pronouncing it wrong and no one even corrected her. Grated on me the whole episode.
In ST, I'm more annoyed by Anglo-Saxon names for 99% of humans
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew