1) I think it solved unfortunate that with the option single file per entry a subdirectory consisting of many files (usually jpg files) is created.
Especially if occur from TMDb movie names that contain illegal characters. I can not copy the exported directory to a flash memory formatted with FAT32.
Question to the Kodi-team: Would not it be better when Kodi would output that as a zip file?
2a) When I import the library, the images are always missing from the actors, even though they were exported.
2b) After importing, kodi seems to still search files like fanart from the internet again.
Can the kodi-team check the export/import function again?