I need 2 forge versions to be installed in my minecraft, forge 1.8.9 and something newer. But when i install forge 1.8.9 and then 1.14.4(or 1.15.2), version 1.8.9 doesnt work. Looks like when i install 1.14.4 version of forge, it replaces a lot of files in 'libraries' folder, which are necessary for version 1.8.9 to work. Version 1.8.9 even disappears from the list of versions in Minecraft launcher.
Is there a way to make forge versions 1.8.9 and 1.14.4 work together?
Here's how I installed these versions:
1) First I fully reinstalled Minecraft Launcher and then installed forge 1.8.9(tryed latest and recomended versions)
At this moment forge 1.8.9 work properly
2) Then I installed forge 1.14.4(also tryed forge 1.15.2). Now 1.14.4 work properly, but 1.8.9 just disappears from the list