When restoring a corrupted world, the world will be reverted to when you last saved. Anything done after that last save will not exist anymore, and will be reverted back.
To be discreet, you are using a BETA of Minecraft, so Mojang probably can’t help you.
Did you turn TNT Explodes off?
TNT will always explode under lava except if TNT Explodes is disabled (via /gamerule or via World Settings in the World List.
Hope this helps 🙂
Technically, that has been in the game for a long time, so I do think it is intentional.
Ah, I see.
Please excuse my weak understanding on how Jira works. I’m new to this, and I don’t really know how some things work.
June 2020 update:
Loading speed is fine.
Still have the odd texture pack.
No response from anyone who could be of assistance (staff, helpers, etc) since 21 Apr 2020. It’s 14 June as of writing.