With Plasmatube built from git master today no videos load using the Piped backend. In the console I see "[file] Cannot open file '': No such file or directory" whenever I click on any video. Interestingly enough 24.05.0 on my desktop using the same Piped backend and instance loads the video just fine (but then I get https://bugs.kde.org/show_bug.cgi?id=486707 preventing me from playing the video but that's a separate problem).
Confirm this same error happens also using Invidious. Subscriptions also update only sporadically and not accurately as well, but that's also a separate issue and may be related to Invidious itself and not PlasmaTube.
This still happens on 24.08.2 Flatpak. I'm using a functioning Invidious instance. Here's the error from a random video [file] Cannot open file '': No such file or directory Failed to open . Error for QNetworkReply::ServiceUnavailableError QUrl("https://inv.nadeko.net/api/v1/videos/T3rnBuSTNhY") "Error transferring https://inv.nadeko.net/api/v1/videos/T3rnBuSTNhY - server replied: " VideoModel::fetch(): Error: "Error transferring https://inv.nadeko.net/api/v1/videos/T3rnBuSTNhY - server replied: " QNetworkReply::ServiceUnavailableError Failed to fetch comments: "Server returned no valid JSON." I suspect the issue is somewhere in https://invent.kde.org/multimedia/plasmatube/-/blob/master/src/api/invidious/invidiousapi.cpp This is specifically a problem with how Plasmatube handles the /videos endpoint I think, because the homepage and such work fine. Unfortunately I don't have the right environment to try and debug it right now.