Select NSP files not working

[tefanga]

Describe the bug (mandatory)
A clear and concise description of what the bug is.
The button Select NSP files stopped working.
I've been using the app for installing like 20 games no problem. But last game I installed was South Park The Fractured but Whole, installed the update all fine, tried for the dlcs and button stopped working.
Closed and reopened still not working, system reboot still not working... also reinstalled java, still not working.
Some people told me that it could be because I deleted the last folder where the button redirect automatically when pushing it.
But if I did, I dont remember.

Information about environment (mandatory):

• OS: Windows 10 - 64 bits
• Java version: 1.8.0_271
• Ns-usbloader version: 4.3

Steps to reproduce
Steps to reproduce the behavior:
1º Install games (if app worked)
2º Till you reach a game you can't "upload" to the ns-usbloader
3º Stopped working the nsp file button

Expected behavior
A clear and concise description of what you expected to happen.
Expected for the file explorer opens correctly

Screenshots and/or information from application log
If applicable, add screenshots to help explain your problem.

Did you see this issue in previous versions?
Don't know. Haven't used them

Additional context
Add any other context about the problem here
I had read other people has/had the same problem.
I think maybe as other people told me, it could be because I deleted the folder of the last place where I selected a file. (can't know that because I don't remember doing it)
Also I cleared the cache of java, still not working.

[developersu]

Yeah, it's fixed in code but I was too lazy to release new version ( ><)
Anyway, now (v4.4) it's fixed!

Many thanks for detailed report!

[tefanga]

Thank you for your answer/concern.
Great app.
Nice work.