Forge Installer Not Proceeding

[Popymon24]

Hi there; with the Log4j vulnerability recently patched, I was looking to update my server from forge-1.16.5-36.2.9 to forge-1.16.5-36.2.20; however, whenever I open the installer.jar a blank window titled "Mod System Installer" opens but nothing happens. It creates a log file, then proceeds to hang. I've tried different java versions, redownloading the file, Jarfix, and resetting system variables to no avail. 

I would normally pastebin my log, but this is all it outputs:

"JVM info: Eclipse Adoptium - 11.0.13 - 11.0.13+8
java.net.preferIPv4Stack=true
Found java version 11.0.13"

And if you would like to see the blank window: https://ibb.co/VL2z4bf

[Luis_ST]

run the installer from the command line and post full output

Edited December 14, 2021 by Luis_ST

[Popymon24]

  On 12/14/2021 at 6:30 PM, Luis_ST said:

run the installer from the command line and post full output

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That's where I'm running into problems solving this; the only output, both in console and in the log file, is what's listed in the original post. I've tried a few different versions of Java, from both Oracle and Adoptium, but the output is always the same as OP, except listing whichever version I run.