1.14.3 installer stuck at " Processor failed, invalid outputs"

[MyKonar]

Note, I am not the thread starter to the below, but I am having the exact same problem:

https://github.com/MinecraftForge/MinecraftForge/issues/5915

 

Processor failed, invalid outputs:

C:\Users\Connie\AppData\Roaming.minecraft\libraries\net\minecraft\client\1.14.3\client-1.14.3-slim.jar
Expected: 26e8580ce23d59759c2db41756a834a6df292313
Actual: 06502fbec8594c88e64e2f54b3eb90627c0ffc24
C:\Users\Connie\AppData\Roaming.minecraft\libraries\net\minecraft\client\1.14.3\client-1.14.3-extra.jar
Expected: e0a45cca33d23f63b149b4546978ee0e4d858167
Actual: 78b49627eb4663bde854da7fd3e0c61c8b08ea0d

 

Failed downloading the libraries (some handshake or certificate issue). Downloaded them manually using the links from the log files and placing them in their folders. Now the Forge installer is accepting all the files but stops at "Data  version.json" with that slim and extra .jar

 

My "actual" hashes are the same as Connie's. Deleting the .jar.cache files and launching the vanilla game doesn't do anything. Rerunning Forge will yield the incorrect 2 .jar.cache from above again. Renaming the cache files to .jar files doesn't work either.

Tried the current latest version 27.0.43, and a couple earlier versions, still can't get past that issue. Seems like a small mistake made by the developers somewhere. Help please.