I have found the same problem. It has happened both with a brand new repl and with an existing one. Both were running Svelte, whereas other repls which do not use Svelte came up fine.
It alternates between “Connected” and “Connecting” messages in the bottom-right corner, and a progress bar that alternates between “Booting Repl” and “ready”.
@IanAtReplit If you look at my screenshots (linked above), the repl.it IDE cycles forever between “connected” and “reconnecting”. This does not happen for other repl.it projects (even similar ones like Sveltekit), but it does happen every time I create a plain Svelte project. There is clearly something wrong with the way your scripts are running a Svelte project.
I have an existing Svelte project that won’t run now, and new projects don’t either.
Thank you both for getting in touch to confirm that it’s working again. I’ll close this topic for now but if there are any other issues please post again!