same here - except that it is reliably wrong on some tables - i.e. some table in table view show the null record as first line - some tables don't behave and show as expected.
did you change the theme - maybe from classic to a 15 compliant theme?
The theme for layout connected to these tables is a modified Enlightened; though the issue shows up in table view as well as form/list view.
AIT-FM, we have experienced a similar issue with the first record of our "main" table becoming corrupt. Sometimes other records become corrupt, but always the first record of the first table the DB touches. In my case I am unable to actually delete the record from the UI—I have to run a recovery on the file (which gets rid of the record).
I've tentatively blamed the "auto-reconnect to server" feature as the culprit and have been talking to FileMaker support.
Question—you mention that you can simply delete the record and import the same record from a backup to fix the problem… is there any file recovery required? If not, we are likely experiencing different issues.
in my case it is not a corrupted empty records as it might appear - it is just an extra line without any content so looks more likely a graphical thing how tables are rendered ..
Thank you for your posts and screen shot.
The next time this occurs, please send in a copy of both the good file and the bad file. This may provide a clue as to the cause. I have sent you a private message with instructions where to send the files.
To date, we have seen question marks appearing in fields for the first record only, and this occurs under macOS Sierra 10.12.x, so your issue may be related.
If you find a subset of records and then Show All Records, is the first record then accessible?