File names not transferring - inaccurate naming

Since your last update my original file names are not transferring. Instead some are being name fullsizerender.jpg  - When I try to transfer them from my iphone to my mac, some are renumbered, but some do not put the period between fullsizerender and jpg;  so they won't load into Lightroom since they are recognized as text files. Others are getting a long file name. Please fix.


see attached.