difficulty finding included files after switching to 5.4

[jinpavg]

After switching to 5.4 and attempting to build a project with RNBOMetasound included as a plugin, I can't build, due to some include errors in RNBOOperator.h :

Error (active)	E1696	cannot open source file "IAudioCodec.h"	RNBOTester	C:\Users\alexv\repos\c74-repos\rnbo.metasounds.testproj\RNBOTester\Plugins\RNBOMetasound\Source\RNBOMetasound\Private\RNBOOperator.h	25
		
Error (active)	E1696	cannot open source file "DecoderInputFactory.h"	RNBOTester	C:\Users\alexv\repos\c74-repos\rnbo.metasounds.testproj\RNBOTester\Plugins\RNBOMetasound\Source\RNBOMetasound\Private\RNBOOperator.h	20		

[jinpavg]

an update here -- using the xnor/ue5.4 branch, some exported patches build just fine (like the FeedbackSynth), but i'm getting some failed builds on windows with warning C4702

here's my exports folder:
Exports.zip