I tried to get some specifications for this thing, but Asus doesn’t provide them- not even in the manual?
Might be firmware TPM located in ME region. This (and other functions) aren’t working when ME is disabled.
Try to get a complete firmware dump with Intel Flash Programming Tool (fpt) from ME tools 12 package. Can be found here- 1st post
Command would be FPTW64 -d spi.bin (might give an error message related to read access rights though)
Attach the file here or post a link to the dump.
Run MEInfo from the same package and post the complete output here.