I agree with Estel's suggestion. camera-ui2 is buggy as hell, and no one seems to maintain it. I've experienced a very infuriating bug [1]. Imagine yourself on an abroad trip with each <3;20> photo not being saved. A camera-ui hang instead. Btw. no feedback from so-called maintainers (in the bug report I asked how to get some sensible log). And there've been similar bug reports in the past.

[1] https://bugs.maemo.org/show_bug.cgi?id=12731