The weather finally cooperated and I was able to run my multi-battery mapping flights over my 30-odd acres of property. It didn't go without hitches, mostly my fault, but also a bit of wind pushing the drone around. Still, I got it done and the photos look really good for stuffing into WebODM. Still some work to do before I can do that, since it's over 800 photos in RAW format, and ODM doesn't like anything but JPEG.
Anyway, as I looked through the photos, I discovered that when I got to photo number DJI_0999.dng, instead of continuing the sequence, it opened a new folder and started over at DJI_0001.
Is this a DJI thing? Is it a DroneLink thing? Or did I do something wrong in setting up the photo numbering?
I've got the photos, and I can deal with the odd numbering, but I sure didn't expect it to roll over at 999 instead of 9999.