Hello, joining the party here.
I've been having the same problem with the tab.ini file, but I get a couple of very similar messages, apparently randomly.
one is
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Error
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Auto-storing tab setup failed
Could not open file C:\users\diegodurand\Application Data\HeidiSQL\tabs.ini
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OK
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and the other
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Error
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Auto-storing tab setup failed
Unable to write to C:\users\diegodurand\Application Data\HeidiSQL\tabs.ini
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OK
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The thing is, the file IS being writen, i.e. it does have read/write access.
in fact it has been writen just now.
The file DOES have content.
I am running HeidiSQL trhough wine, so the full path to tabs.ini is:
/Users/<user>/.wine/drive_c/users/<user>/Application Data/HeidiSQL/tabs.ini
I am sitll @10.20.5599 instead of latest build, so restoring SHOULD be enabled
I am running two heidi instances.
I tried opening a third instance, creating a few dummy files, and closing (that instance) of heidi, it did prompt to save them, so I didn't manually save any, but when reopening heidi (3rd instance), it still didn't reopen the previous tabs.
Let me know if I can help testing any further.
I also see you are currently working on the issue on a different post, @
heidisql .com/forum.php?t=34044#p34148 (sorry cant post links yet),
but since this seems to be more specificaly related to tab restoring, I am posting this here.