When I type in IntelliJ now, it keeps putting two characters down randomly.

The only thing I think I've changed since it was working fine for my first .java is that I added a second .java and now typing in either of the files is a total nightmare. The folder they are in, if it matters? (totally new to this) are in the project folder > src > main > java > and both of them end in .java.

I went and tried to type

"I hope this issue has an easy fix and it's me messing something up"

 and it wrote 

"I hope this issue hhas an easy fix aand iit's me messinng sommethiinng up"

Does anyone have any idea what this could be? Nowhere else that I'm typing on my computer am I having issues lol I'm very confused. I tried closing and reopening the program and restarting my computer but it still persists.

I am running 

IntelliJ IDEA 2020.3.4 (Ultimate Edition)
Build #IU-203.8084.24, built on April 27, 2021
Licensed to 
Subscription is active until March 10, 2022.
For educational use only.
Runtime version: 11.0.10+8-b1145.96 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1500M
Cores: 4
Non-Bundled Plugins: org.jetbrains.kotlin