Lightroom camera images cannot be transferred between iOS devices

Without wifi, it is not possible to transfer images, captured by the Lightroom camera and imported directly to Lightroom on the iPhone, to another iOS device (iPad) by direct connection. Images from the camera roll can be imported but images already in Lightroom cannot. This is a problem when using the Lightroom camera (on the iPhone) in the field, with no wifi, and needing to edit those images on the iPad. All devices are running iOS 13.3. The only alternative is to use another camera such as Halide which imports to the camera roll.