Hi Thomas,
Since update 2020-04-25-17.17 (yesterday) i have the same issue, no metadata in the picture properties and in meshroom (2019.2.0). It seems as if meshroom is working despite the missing metadata, a warning appears in the log window.
I uploaded my pictures with my email roland.kueng@gmx.at.to the openscan cloud.
I use the pi-shield with raspberry 3 and the Sony IMX219-sensor.
Do you know how to add the IMX219 to the meshroom sensor database ?