Using non-ascii characters in file paths, toolchain config files, and other non-display contexts is just asking for trouble, even if it is your name...
This is the modern, post-ASCII computing world, we should no longer be willing to settle for the lowest-common-denominator of ASCII-only strings. There's no excuse for actively supported, paid products to have these problems today.
Not saying that this is OK, just explaining why using non-ascii characters, in this day and age, is still asking for trouble.