I am having exactly the same problem. Please let me know if you find a solution. I’ll do the same 🙂
I had to go to the cPanel/File Manager and locate the folder “wp-snapshots” where the file was created, and download the files from there.
I believe the problem is related to the latest release because the files are properly created, but it doesn’t find the file .daf when trying to download it.
I hope this helps.
I am having exactly the same problem: when trying to download the files I get an error for the.daf file.
Please help!