FMP 16 connecting to a FM 16 server running on MacOS 10.13.
I've got a c. 950MB file with one container field with open external storage and about 35k documents (about 26GB) in this external storage. Today I tried to bring those documents back into the FileMaker file by switching the container fields's storage definition from external storage to internal storage. After "Estimating disk space requirements" for a while, a "Transferring container field data" progress bar told me the data was being transferred... and at the end of all this a "Transfer summary" dialog said the process had failed. The log file detailed how every record's container data failed validation with error 507 and 0 records' data had been transferred.
in the table's field definitions the container field's storage setting now show internal storage, not external storage. My documents are all still visible in the UI and the size calc. field correctly displays each one's size, but the file size hasn't changed. If I rename the external container storage folder, all documents vanish from my UI, and when I rename the folder back to what it should be they reappear. Seems clear that the field is still using external storage, even though it says internal.
When I go to switch it back to external storage, I get the same process described above, the same error message at the end, and as before the field's storage setting has changed even though no data transfer actually happened.
If the data transfer fails and the de-facto container storage doesn't change, shouldn't the field definition reflect these facts and also remain unchanged?