Photos missing geotag in iOS environment (attachment widget)

[Ysidros]

I have another problem with the attachment widget in iOS: The photos are not geotagged.

I tried three ways:
a) using the native iOS camera, geotagging turned on in the iOS settings
b) turning off the native camera in the QF settings (QFiel internal camera on)
c) choosing a photo from the camera roll that is geotagged

Each time the photos have no geoinformation whatever, I checked the saved files in the QF folder with the Geosetter software. Also, the location symbol next to the thumbnail in QF attribute table is crossed out.
So it seems to me like QField is deleting existing geotags when saving the files.

This does not happen on an Android device, I checked. Is this an iOS bug or do I need to configure something else?

Attribute table thumbnail:

thanks in advance,
Ysidros