Howdy!
I understand you have some questions about the versions of the Haptics SDK and the compatibility with your version of UE. You're correct that there is currently no publicly released v74 of the Haptics SDK. That said, you have a few options available to you to fix the issue you're experiencing.
As you mentioned previously, you could recompile your engine and align with the current release version (v83) of the Haptics SDK. However with that option, I will note that v83 of the Haptics SDK is not supported by UE 5.5.4, and you would also need to upgrade to 5.6. That said, the other option if you want to continue using UE 5.5.4 you could also try downgrading the Haptics SDK to v74 as that version is supported by UE 5.5.
Whichever option you choose, I would suggest that you ensure all versions of Meta's SDKs (Platform, interaction, audio, etc...) are all on the same version to avoid compatibility issues. Hopefully you found some of this helpful, and please feel free to let me know if you have any questions!
-G
