the white lines (without mods without optifine)
This looks more like a graphic bug that comes from your PC and not from the game.
My friend also had a similar bug, but his GrafKa was also scrap.
What GPU and CPU do you have?
> 730 i5 8400
Yes I had that once but only with this Minecraft version so it could be that it is related to the version but I don't know. In any case, everything works fine for me and without bugs
I've only had pc for 3 months
OK. Do you have any other graphic bugs?
Either it is on the grass or on what you are playing or a block update is missing
otherwise I have no idea sorry; 3
The bug is in 1.15 and 14 and 13 etc. In all versions
I say a GT730 is not the best.
But actually, if the PC is so young, there shouldn't be any problems with it.
Which MC version are you playing?
No actually not overclocked either
1.15.2
Hmm ok. So graphics card doesn't seem to be junk.
OK.
My tips: restart Minecraft again. Do you have TP's inside? Or mods?
Take another version 1.15.2 is not very good because it is very young
It looks like something is wrong with the anti-aliasing (lines run along the blocks). What have you set as anti-aliasing?
No mods and tp. In the 14.4 is also the bug and in all other versions up to the 1.7 but does not want to play the 1.7
No