Hi Bruce,
I did some more checking, it seems the code ending with "76A4" is associated with "S32 Design Studio for ARM v1.1" and the one ending with "8603" is associated with "S32 Design Studio for ARM v2018".
I also notice you have a code ending with "90B2" for S32 Design Studio version v.3.5 and one ending with "491B" is for "S32 Design Studio for e200 v2.0".
There was an issue in the past regarding the licenses for the S32 Design Studio for ARM. If the license was near expiration, then an issue could occur where the trusted storage would become corrupted and you could not re-activate without re-initializing the trusted storage. It could be this is the problem you are experiencing. Please try the following:
-> Delete 'C:\ProgramData\FLEXNet'
This folder may be hidden by default, so then it would be necessary to change Windows Explorer settings to show hidden items.
After this, try to activate again and if it asks to return the license, select Yes and try once more.
Best Regards,
Mike