Several times while exporting apps it will flash up a toast notification of the location and name of the apk I selected to export. Problem is when I check with a file explorer the app isn't there, same happens with backup option as well.
First some basic on AW's folders,
(a) Base folder - Everything is store under this folder, this folder is user defineable. Goto "Settings > Basic > Base folder" to see its location.
The default on first AW install is "/mnt/sdcard/AppWererabbit", this may differ due to Android version.
Refer to FAQ - What is this "Base folder"?
(b) Apps backuped using the backup function is stored in "Base folder"/backup folder
(c) Apps exported using the export function is stored in "Base folder"/export_apk folder
From your description, you are unable to see the expored apk file,
(1) If you are using the "Broswe exported APK" function, then you must have "OI File Manager" installed.
Refer to FAQ - In addition to OI File Manager, can you support another file manager?
(2) If you are using another file manager, follow the path stated in (c) above.
(3) If you still can't find the export apk, check the "Base folder" is located on storage writable by AW.
With regard to backup, backuped apps is located under folder stated in (b) above, can view using the "Backuped Apps" function.
The different between Backup and Export functions is Backup is managed by AW, while apk exported is unmanaged.
Good app but error checking routines need updating.
Will check on the error checking routine, thanks for reporting.