Hi Adam, welcome to the forum!
If you think you in fact do have enough instances of Kontakt/VDL in your Playback Configuration, try switching to a different config, hit Play and let everything/whatever load, then switch back to the original config, hit Play and see what happens. Another option is to build out a new configuration.
Let me know how those two things go, I may have you send me the file.
If you think you in fact do have enough instances of Kontakt/VDL in your Playback Configuration, try switching to a different config, hit Play and let everything/whatever load, then switch back to the original config, hit Play and see what happens. Another option is to build out a new configuration.
Let me know how those two things go, I may have you send me the file.