Hello,
I have a zip file in a folder located D:\Test\pack.zip (zip contains one directory and one file).
Unpack this file to the folder D:\Test\pack\ (Source).
Then select everything in this new folder and pack (Alt + F5) and pack into file D:\Test\pack.zip (ie, identical to the original file).
Message with question to ovveride existing files confirm by Replace All and Error message is displayed (File xxx is not found). Skip All, then Cancel = crash.
Tested on:
Beta version v3.0 (build 1330)
v2.8.1 (build 1275)
Best Regards Lukas