cue plugin crash on some malformed sheets
I found that cue plugin crashing audacious when the file type in cue sheet is incorrect. There's an example of such cue sheet in attach. People often use some non-standard file type identifiers like a "FLAC" instead of standard "WAVE".
Also I made a patch to avoid this (for version 3.1.1, but it can be also applied to current git source). On my way it causes an assertion instead of segfault.
Hope that it will be helpful for you.