I've enjoyed hundreds of hours of recording 4K60 and sometimes 1080p60 on my Ninja 5" (both ProRes HQ).
Last week I was recording in a somewhat warmer room than usual. The Ninja hit a black screen and froze about 10-15 minutes into the recording. I adjusted the cooling mode to turbo and it seem to have fixed it.
Here I updated to the latest firmware (unknown which I had before).
Yesterday while recording the Ninja stopped recording randomly after 20 minutes, corrupted the file and somehow marked the SSD as full (the record button was greyed out). I fixed the file and could continue to record an hour afterwards without issue.
Has the Ninja's best before date expired? I'm so bummed out I can't trust it now and it's my favorite piece of gear in my kit. 😓