Hi WhiteNoice. After version 14.5 and the PDF problems I used your hack and reinstalled 14.2 and that did solve the PDF problem. After upgrading to version 14.6 installer today I do have again PDF problems but they are different. There is no error and the PDF appears for 1 second and then I get a black screen. I restarted but the problem is the same. I did reinstall 14.2. But there is something else that I noticed last time but I was not sure. But today I did see the same thing and can replicate it. When you downgrade Obsidian to version 14.2 the Sync is removed I have to make a new connection with the problem that there already files on both sides. I have used this link for the installer Download - Obsidian
this is happening with me too, when i was using obsidian 0.14.5 pdfs failed to load after which i updated to obsidian 0.14.6. pdf viewing worked for one day after that, but now this is what it looks like