are these photos heic/heif files? if so, this may be related to https://forum.inaturalist.org/t/android-images-taken-with-heic-format-appears-sideways-when-submitting/43824/5, and this could be a workaround until the problem is fixed: https://forum.inaturalist.org/t/photos-rotated-after-adding-to-observation-date-and-time-not-imported/24763/12.