I can confirm that I have all these problems. But the thing is that on the old launcher it saves properly, but it does NOT save properly on the new launcher. Level.dat has a ton of numbers at the end of it when saving with the new launcher. No numbers when saving with the old.
I can confirm that I have all these problems. But the thing is that on the old launcher it saves properly, but it does NOT save properly on the new launcher. Level.dat has a ton of numbers at the end of it when saving with the new launcher. No numbers when saving with the old.