You have the update channel set incorrectly for your MS Office LTSC Professional Plus 2024 Preview.
The "Current (RTM/Retail)" channel is mainly for Retail editions of MS Office 2024, and you have MS Office LTSC 2024 and this means corporate Volume.
You should install MS Office LTSC Professional Plus 2024 Preview with the most appropriate channels "DogfoodDevMain (MS Internal Use Only)" or try "Office 2024 Perpetual Enterprise".
a) By installing MS Office LTSC Professional Plus 2024 Preview with the channel "DogfoodDevMain (MS Internal Use Only)" the application will be automatically activated under KMS. Version: 16.0.17907.20000
b) In order to activate it yourself, try installing MS Office LTSC Professional Plus 2024 with the "Office 2024 Perpetual Enterprise" channel selected. Version: 16.0.17726.20126
In all other respects, I wrote to you clearly in my previous message.
Until the release and the first update package for MS Office LTSC 2024 & MS Office 2024, there seems to be nothing left to write or explain.