When I join VRChat (Quest 3), more often than not, my loading screen and warp effect selection reverts to the default options when, before exiting the game through the Quest menu, the selections would be on "Classic Warp Tunnel" and "Shimmering Warp" respectively. My other cosmetics, like drones and UI themes, are not affected in this way. To my knowledge, there is nothing wrong with my VRC+ subscription, as the other features work fine, and there hasn't been an issue with payments. On rare occasion, the settings would be saved between sessions, but that does not happen often, and having asked friends about it and confirming that they do not experience this issue, I can reasonably assume that this is not an intended feature.

Edit: I have been facing this since the release of the "Classic Warp Tunnel" loading screen

Edit: Apparently it will sometimes unequip one cosmetic and not the other. See second attachment.