We have been receiving an increased number of crash reports lately and, though the crash logs were not clearly pointing to one definitive issue, we think they may be caused by a memory leak. We suspect the culprit to be the version of Unity we used for making builds for the past two weeks (5.3.3), so we've decided to try a beta of Unity 5.4. Our internal testing did not show any obvious problems, but it still needs to be tested a little better until we can use it for a non-beta release.
Beta branch pwd is KuChwaleGorda, as always. It would be great to know if it eliminated crashes for those who had them.