i cant change block in 1.14

I play in adventure mode, and i off cheats. And then, i died in game, i regret it, so i open to LAN and allow cheats, and then i cheated and flew to my home (because i lost my bed, my home far away me).

But when i back home, i found i cant set block, and i cant break block, but i can open the door. (in this time i was close LAN mode)

I think it's because i open LAN mode.

Please fix it in next version. If you receive feedback, please reply to my email, thank you.