I've been trying to find some place where I can ask the same questions. I have the exact same situation, exactly the same problems as Julie described, and I also did every check/change on the settings as Julie did. And unfortunately, the problem still exists.
I have used ARIS to design place-based language games since 2015. The recording notes function has always been an important feature in the game because it allows students to record their discussions with their team members or interviews with other people. I firstly encountered the recording notes crashes ARIS bug last year (2017). Our team has three iPads, five iPhones, different OS, different series, none of them work on the recording notes function. At that time, we were collecting students' play-through data for analysis, so we have researchers video-recording the gaming process. We ended up having students talking to OUR cameras, instead of recording it on the app.
I'm currently designing another game for my ESL students. I have tried to avoid using the recording notes function in the game design, but I feel very limited in that this can't reach the full potential of such a mobile-enabled place-based gaming environment for my students. Can somebody help with this problem please?
Also, my game couldn't load on either of the iPads, it only runs on the iPhones. Is it because my media file is too big? Please please help.