We have reproduced the issue and it is logged in for fixing in the next update.
Thanks for your help!
I have a pae2 file that has multiple text files in it. When I open the file, I can double click one of the files and I can view it in a powerarchiver tab.
If you close that tab and attempt to open any other file in the archive, it will no longer open or extract. Only option after closing the tab is to close powerarchiver and reopen the file. If you don’t close the view tab, you can open other files as multiple tabs as long as you don’t close any of the viewer tabs. As soon as you close one tab, you no longer can view or extract any file.
Edit: didn’t realize this was the forum for PA format bugs until after I posted. If this can be moved to general bugs that would be great (unless the bug affect PA format viewing as well)