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I have saved a TVP file yesterday night, and closed it. When opened now, I realized, that parts of a recent drawing disappeared, as if it has returned to some previous state in history...
any ideas? thanks

Do you have a multi backup set in preferences? If you do (as everyone should IMO) you perhaps opened by mistake one of the older saves.

I'm not that oblivious - I have checked everything before posting: the date and time are correct, and besides it's the only file - I don't have backups on this one...
the missing part is the last 10-15 minutes.

In that case there is only one more idea I can come up with; you might have inadvertently done something within the history panel. If you never use it then I can't see how that would happen, but if you always keep it open, and not just that, but use it often, I can see how that might happen.

My history panel is always hidden far away down on the left tools panel... it's not likely I accidentally scrolled down and clicked another history state, while saving the file... very unlikely, but who knows

I just realized that maybe few are aware of the new and fabulous option in TVP-11 under Preferences>Save>Multi-Backup Directory>menu: 1.Project's Save Directory, 2.Custom.

Selecting "Custom" opens a browser through which any HD on the local computer or a dedicated external computer or HD can now store our backup safety saves.

This means that if you loose your current HD or if just a crash obliterates your entire project, you will have all your backup saves preserved in any other place than where your project lives.
I recommend an external drive or just a flash drive for total peace of mind, particularly if you might be working on a computer with just one HD, such as a laptop. I have my Multi-Backup set to 20 before the cycle starts overwriting its cycle because I press save very often. This means I have a choice of 20 saves to look for a sketch I regret once having made but dropped too quickly.

Paul Fierlinger wrote:I just realized that maybe few are aware of the new and fabulous option in TVP-11 under Preferences>Save>Multi-Backup Directory>menu: 1.Project's Save Directory, 2.Custom.

Yes, that's a great feature, except, that I'm stil on 10.5 :/

Paul Fierlinger wrote: I have my Multi-Backup set to 20 before the cycle starts overwriting its cycle because I press save very often

WOW!!! How much HD space do you have?!?

I have one 250 GB SSD just for temp files
One 950 GB drive for remnants of old files I'm too wimpy to discard
one 1.80 TB drive for my C drive which has only about 25% of its space used but is ready to handle over runs from WIP, so far not needed.
a 2.70 TB external mirror drive
and a 4.0TB drive for works in progress, which are one 2hr film in 4 parts soon to be released, and a 30 minute short -- both self financed and targeted for self distribution online.
In addition we have a networked 5.50 TB Buffalo drive for joint backups and storage.
Sandra has her own drives.
The content of all of these are nonstop backed in the cloud via Carbonite.

I love all what you've just said ))

Then you should drop by for a few cups of coffee and good conversation.

Paul Fierlinger wrote:Then you should drop by for a few cups of coffee and good conversation.

With pleasure, but I'm afraid we are too far away now :/
We should have met 5 years ago, then I lived somewhere around you