Can you send this .sesx file to email@example.com and I'll ask someone to take a look?
Since Audition Multitrack records directly to disk, it may just be that the reference to these files is incorrect but that the files remain on disk. If you look in the folder you created this session in, there should be a subdirectory appended with "_Recorded" which should hold all audio recorded within the session. If you find the files these clips are looking for there, you can open the session and choose to link the missing files to this new location.
I've seen a small handful of reports about this behavior before, but I don't think we've been able to reproduce it in-house before. Do you recall if, after recording these clips, you performed any editing on them in Waveform view?
Thanks for prompt answer.
I did not edit these clips in Waveform view, (I rarely use it when recording, I do in postprod.)
Unfortunately files with names as per the missing ones are not present in Recorded folder, nor in any other location I could think of, actually I told Windows to search the whole machine but there was no luck. For me it looks like these were temporary files stored in temporary folder that got removed on session's closure. (which is pity as I spent a lot of time recording these 8 clips)
The link to the sesx file is here:
The only thing I can recall is that I was surprised that after pressing ctrl+s the saving process was surprisingly quick, small "saving..." window appeared then instantly dissapeared, (normally it takes some time, like 15 seconds or so) so I thought I press ctrl+s again, and then it took its time But other than that no missbehaviour.
Thanks for the additional details. It's odd that it would permit a second CTRL+S operation as the command should be disabled if the session has not been changed since the last save. That certainly implies the first, fast save operation was not successful.
If you have a few minutes, could you check in Control Panel > Administrative Tools > Event Viewer > Windows Logs > Application and see if there were any entries from Audition around the time you performed this save or recorded these clips?