Objective-c class exposed via bridging header not visible from swift when archiving release

In my react native project, I try to expose a swift function to the javascript code. It works well in debug mode, but when trying to archiving I get a Use of undeclared type RCTEventEmitter error on my swift file.

The RCTEventEmitter is imported in my RNUtils.m file, and in the bridging header.

So I guess somewhere in the archiving, something fail with the bridging header, but I have no idea where.If I ask for a non existing import, it will tell me that it can't compile the bridging header, so the file is taken into account during the build.

// Utils.m#import "React/RCTBridgeModule.h"#import "React/RCTConvert.h"#import "React/RCTEventEmitter.h"@interface RCT_EXTERN_REMAP_MODULE(RNUtils, RNUtils, RCTEventEmitter)@end

// Utils.swiftimport Foundation@objc(RNUtils)class RNUtils: RCTEventEmitter {  // my native code emitting events}

// MyApp-Bridging-header.h#ifndef MyApp_Bridging_Header_h#define MyApp_Bridging_Header_h#import <React/RCTBridgeModule.h>#import <React/RCTEventEmitter.h>#endif

• react-native 0.61.5
• xcode 11.5
• Swift 5