Minecraft block break lag?

I'm playing vanilla single player. When I try to break a block, it breaks, comes back, and stays for up to 15 seconds before breaking for good, as well as dropping whatever it drops. This is a new world, and a survival level I made a while back works just fine. This has happened to me before with new world's, but is seems like they usually work eventually. And yes, I have gotten out of Minecraft and back into it. It hasn't helped.

What's a good minecraft modpack?

So i want to record a moded survival and don't want to do the generic one that Sky or them use, I want a cool one they haven't used so its unique.

So, any suggestions?

Why is minecraft so stupid and popular?

I mean its just not the graphics i could play games with bad graphics but its just the objective of the game that really makes me wonder and how this game could be so popular. You just build something then break it build it, break it just repeating itself.

Should i get a gaming desktop or laptop?

I want a good computer for editing my YouTube videos and for playing minecraft on
i saw at best buy the cheapest gaming pc for around $500 and the cheapest gaming laptop for around $1000. What should i get and why are laptops expensiver then pc's
but the $500 pc has like 2 out of 5 stars should i still get it.

What's the best gaming pc under $1000?

I want a pc that can run dayz minecraft etc highest quality but no lag for under $1000. I may be able to go a bit over but it depends on the price

My minecraft has a weird 3d effect?

My minecraft has been acting up lately. It seems to be zoomed in on the sides and zoomed out in the middle. I don't think it's a problem with super secret settings.

Why do people hate on Roblox but not Minecraft?

Just wondering.

I mean Roblox does have some pros and of course they both have cons but why do people hate it?

Minecraft and Roblix is mainly made for kids, but Roblox games can be harder to make at times, which require skill (scripting, originality, etc.)

Minecraft is a limited yet unlimited (maps can be unlimited, but other things can't, like scripting or trying to make up a game that will become popular.)

Also not trying to offend people who like Minecraft, I bought the game and play it, BUT why hate Roblox, it takes time to make games on Roblox if you think about it, I've seen amazing creations on both games.