Sometimes exception occurs when gaining focus

[nevets1219]

• What happened? Error pops up:

In update thread: [string "#@..."]: 47: attempt to index local 'outFile' (a nil value)
stack traceback:
[string "#@..."]: 47: in function 'downloadFile'
[string "#@..."]: 175: in main chunk
Press Enter/Escape to Dismiss, or F5 to restart the application.

Problem will persist upon either dismissing or restarting the application.

• What were you trying to do? Switching to POB from POE.

• What steps will reproduce the bug? When POB is minimized on a second monitor and I ALT-TAB into it.

• Does it reproduce every time? Problem does not reproduce 100% of the time but is rather frequent.

• Provide a build code: Running 1.4.170.24 on Windows 10.

• Screenshots: https://imgur.com/a/VhkhIYr