- timeformat node: localtime_s/gmtime_s (reversed args, 64-bit time_t) on Windows — MinGW has no localtime_r/gmtime_r - the multithread suite test passed non-NUL-terminated property names (str::as_ptr) to the C property suite — UB that resolved to garbage lookups on the CI runner - libsnappy off on the MinGW FFmpeg build (only feeds the hap encoder; its pkg-config entry does not reach the static link)