Code signing "dracodec_unity.bundle" failed

I am receiving code signing errors during the packing stage after archiving.

+ xcodebuild -exportArchive -exportOptionsPlist /var/folders/44/c313tf710zz_mswr_8j2vvbh0000gn/T/gym_config20201029-76644-1avfk8c.plist -archivePath '/Volumes/EmTooCache/Library/Xcode/Archives/2020-10-29/Runner 2020-10-29 08.53.31.xcarchive' -exportPath /var/folders/44/c313tf710zz_mswr_8j2vvbh0000gn/T/gym_output20201029-76644-gemrar
2020-10-29 09:03:50.622 xcodebuild[80193:2953266] [MT] IDEDistribution: -[IDEDistributionLogging _createLoggingBundleAtPath:]: Created bundle at path '/var/folders/44/c313tf710zz_mswr_8j2vvbh0000gn/T/prod_2020-10-29_09-03-50.616.xcdistributionlogs'.
error: exportArchive: Code signing "dracodec_unity.bundle" failed.

Error Domain=IDEDistributionPipelineErrorDomain Code=0 "Code signing "dracodec_unity.bundle" failed." UserInfo={NSLocalizedDescription=Code signing "dracodec_unity.bundle" failed., NSLocalizedRecoverySuggestion=View distribution logs for more information.}

** EXPORT FAILED **
[09:04:35]: Exit status: 70

I receive the same error on Xcode and Fastlane.

When I go deeper into the distribution logs I find the following error:

2020-10-29 07:04:34 +0000  /var/folders/44/c313tf710zz_mswr_8j2vvbh0000gn/T/XcodeDistPipeline.~~~BBkfxi/Root/Payload/Runner.app/Frameworks/UnityFramework.framework/dracodec_unity.bundle: unsealed contents present in the bundle root

Any ideas?