On 05/08/2025 23:28, Steve Edmonds wrote:
Did you only have the 1 .bak backup file. Just now observing what 
happens on my laptop, when I save a document it is also saved as 
"document name".ods.bak. 10 minutes after I make any change to the 
document, but without saving it, another backup copy is saved as 
"document name".ods_n.ods. n seems to be a number that changes from 0 to 
1 during edits. May be these are the recovery backups.
If I then save the file the "document name".ods_n.ods file disappears.
Because your .bak file has no text I assume it was saved after the text 
disappeared.
There was just the single backup present, empty. And (to answer a 
private reply), I did actually scour the entire disk (sudo find / -mtime 
-5) looking for relevant files modified in an appropriate time-frame. No 
luck.
I think a severe lesson about backups has been learned. But I'm more 
concerned that I do not see any reasonable mechanism that could have 
caused the issue, which means I can't advise how to avoid a repeat.
I guess it'll just have to go on the "unsolved mystery" heap; but thanks 
all for the comments.
--
Mike Scott
Harlow, Essex, England
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