I have serveral Twincat Versions on my computer. For supporting an older project, I have installed TC31-RM-Setup.3.1.4020.56 on my computer. Installation runs successfully.
Now, after If I start my computer everytime comes this fault message:
TwinCat works without any faults.
There are some hints about the installation order in this article: TwinCAT XAE Changelog (bosch.com)
/bosch-private-area-jje71nwo/post/twincat-xae-version-history-for-nexeed-control-plus-lQvE5VacvPbCkY9
If I understand the article correctly, you need to install a later RM after 4020.