Starting a new side project, no platform-specific functionality needed. Tried out a few relatively "new" languages (more like new to me) and experienced severe frustration from bugs and spotty documentation, lack of proper IDE/debugger support.
So, I figured, better the devil you know. And of course: choice of compilers, choice of FOSS libraries, my own libraries and workarounds to various well-known annoyances and, well, debuggers!
I haven't, it was on my list but I eventually ran out of time an patience. Definitely planning to try it out at some point as I keep on reading great things about it.
Swift/XCode (guess I had unrealistically high expectations, the whole experience was just downright infuriating), Seed 7 (somewhat exotic, I liked it but had some build problems on Mac), Groovy, FreePascal/Lazarus,
D+VScode (almost), Python+VSCode. Embarrassing perhaps, but I ended up doing my prototype in PHP, debugging on my Mac was not fun but its awesome documentation kept on saving the day.
So, I figured, better the devil you know. And of course: choice of compilers, choice of FOSS libraries, my own libraries and workarounds to various well-known annoyances and, well, debuggers!