Is there a way to migrate plugins designed for v.4.21 to a source build?

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I have two plugins, Wwise and a Dialogue system, that were brought into the project at v.4.21. I need to be able to launch the project from a source build to have dedicated server builds. When I tried to switch the UE4 version from 4.21 to UE4-Source, then build it, then launch it, it told me those two plugins were designed for build 4.21. When I chose the option to load them anyway, the engine opened in an older version 4.20.3 (not sure why) instead of UE4-source. A lot of assets were missing and it couldn’t open some maps from 4.20.3 so going with that option won’t cut it. What is the best solution here? Is there a way to safely migrate those plugins so that they are properly opened with the UE4-Source build?

Downloaded the latest version of source and it worked

What if you cannot download the latest version of the source cause the developer of the plugin hasn’t updated it yet? Is there any way to remove this annoying prompt? it comes up every time I open the engine.