Compare with option in context menu not working
I have been using Mercurial Eclipse in the System Workbench for STM32 IDE for a while, and I regularly use the compare with context menu to compare files and folders with previous versions in the repository. Recently I had to switch to using STM32CubeIDE in order to support a newer MCU. I installed Mercurial Eclipse and expected the same compare options would be available, but none of the mercurial compare options are available. I cannot even compare between changesets in the history view.
STM32CubeIDE is using a newer version of eclipse: Version: 4.19.0.v20210303-1800 Build id: I20210303-1800
System Workbench is using: Version: 4.6.3.v20170301-0400 Build id: M20170301-0400
Are there any known issues with the compare with context menus in 4.19.0? Is there any way to enable these within eclipse?