RAR is discussed in different bug-report - bug 1947055 . Please do not mix them.
The current EPUB-related bug is fixed upstream for newer Engrampa releases. Please read linked bug-report.
Possible way to fix it on your current Ubuntu MATE 20.04 LTS it to add MATE 1.26 PPA to the system by using the following commands:
RAR is discussed in different bug-report - bug 1947055 . Please do not mix them.
The current EPUB-related bug is fixed upstream for newer Engrampa releases. Please read linked bug-report.
Possible way to fix it on your current Ubuntu MATE 20.04 LTS it to add MATE 1.26 PPA to the system by using the following commands:
``` mate-dev/ fresh-mate
sudo add-apt-repository ppa:ubuntu-
sudo apt update
sudo apt dist-upgrade
```
then reboot and try newer desktop with newer Engrampa.