I downloaded the latest Plasma testing and burned the ISO without issue. Before I could install, I saw the latest stable release so I tried it, but got an error when checking the integrity, something about the last block not being read. It would not write an ISO. Tried again with the same results. This was all with the app ISO Image Writer. Then I tried with Manjaro ISO Writer and got this error.
gpg: Signature made Tue 01 Oct 2024 12:40:24 AM PDT
gpg: using RSA key 3B794DE6D4320FCE594F4171279E7CF5D8D56EC8
gpg: Can’t check signature: No public key
It still wrote the ISO. I have yet to install it.
I know there are other apps to write ISOs, but I’m pretty sure that will not solve the problem with the bad signature/key