The oversight causing the inconsistent caves seeds has been fixed with today's update (696587), meaning that we are back to accepting seeded runs with caves enabled performed on the latest version of the game!

Please note that we will still not be able to accept any seeded caves worlds generated on the versions that got affected by this oversight, i.e. the versions from the 18th of September to the 26th of October (690619, 691071, 692645, 692916, 692777).

If you have a route that absolutely relies on a combination of mechanics or features that are only present in these versions, feel free to contact us on our Discord, so we can (hopefully) come up with a solution: https://discord.gg/bYg7KaJGU4