Discontinuous room timeline is still a bit away in the roadmap and comes with its own set of caveats; in the meantime, when a user clicks "Scroll to read marker" it would be great to iteratively load chunks of history to reach that place, instead of silently failing (which really is a bug for now). That loading should probably interact with user so that 10k messages don't suddenly get loaded in the background.
Discontinuous room timeline is still a bit away in the roadmap and comes with its own set of caveats; in the meantime, when a user clicks "Scroll to read marker" it would be great to iteratively load chunks of history to reach that place, instead of silently failing (which really is a bug for now). That loading should probably interact with user so that 10k messages don't suddenly get loaded in the background.