Probably a simple quick bug which is why I’m not making this a bug report.
It has two solutions. KAlexK’s is marked as Solution and it shows up as the Solution on post 1, but if you scroll down to OmegaOrbitals’s reply, it also is marked as Solution.
Likely a simple and quick Discourse glitch, but still.
Please don’t put anything about the forum in Bug Reports unless it is about the mobile app embed thingy.
Normally this happens if there are two topics, both have a solution marked, are merged into each other. According to @OmegaOrbitals though, nothing was merged, so Idk