Can't export unsynced Lightroom Mobile Photos

[#1]

I have the free version of Lightroom Mobile and have been taking photos for almost two years with no problem when exporting. I just updated to the latest version a week ago and it suddenly does not let me export any photos, saying "Unable to export without sync - The selected item is not synced and cannot be exported while syncing is paused". Sometimes I am able to export, but most of the times I can't. I do not want to sync any photos. I'd appreciate your help!

[#2]

I have the free version of Lightroom Mobile and have been taking photos for almost two years with no problem when exporting. I just updated to the latest version a week ago and it suddenly does not let me export any photos, saying "Unable to export without sync - The selected item is not synced and cannot be exported while syncing is paused". Sometimes I am able to export, but most of the times I can't. I do not want to sync any photos. I'd appreciate your help!

[#3]

It seems like at some point (possibly a trial?) some photos have synced to the Cloud, with the original being in the Cloud and just a thumbnail or Smart Preview on the device.
Not having a plan and thus cloud storage the device needs the original to export.

That's my guess anyway, but hopefully member of staff (probably Ignacio) will be able to pick this up.