occtec Can I possibly downgrade somehow, will this fix the issue
No, not without unlocking the bootloader and wiping all data. This is a security feature and is mentioned on the GrapheneOS Website: https://grapheneos.org/install/web#verifying-installation
Verified boot verifies the entirety of the firmware and OS images on every boot. The public key for the firmware images is burned into fuses in the SoC at the factory. Firmware security updates also update the rollback index burned into fuses to provide rollback protection.
The final firmware boot stage before the OS is responsible for verifying it. For the stock OS, it uses a hard-wired public key. Installing GrapheneOS flashes the GrapheneOS verified boot public key to the secure element. Each boot, this key is loaded and used to verify the OS. For both the stock OS and GrapheneOS, a rollback index based on the security patch level is loaded from the secure element to provide rollback protection.
And also mentioned briefly here: https://grapheneos.org/usage#updates-sideloading
[...]This includes providing downgrade protection, which prevents attempting to downgrade the version. If recovery didn't enforce these things, they would still be enforced via verified boot including downgrade protection and the attempted update would just fail to boot and be rolled back.