Strange block glitch!

Hi guys, I am having such an odd problem.

when i break a block 20 or 30 block all around it automatically break ..

its ruining my world

.. anyone have any tips?

Quote from coolgamerslush

Does your server have plugins or mods? If yes, then list them.

Or, if your server is Vanilla, then does it have any datapacks??

Hey there! thanks for your reply

here is all the mods im using

This never hapned before I installed some recent mods

like the last 4 or 5 mods

before that it never occured

pretty sure its something like better caves or biomes?

here is my mods\

weird how 1.6.5 ones work wtih forge for 1.6.4 right?

BetterCaves-Forge-1.16.4-1.1.1(1).jar

BetterDefaultBiomes-1.16.4+-Alpha+2.5.3.jar

jei-1.16.4-7.6.1.74

Bountiful-1.16.4-3.3.1

Aquaculture-1.16.4-2.1.12

TravelersBackpack-1.16.4-5.3.8

citadel-1.6.0.jar

abnormals_core-1.16.5-3.1.1

xlfoodmod-1.16.4-1.2.0

SubWild-1.16.4-1.1.1

mcw-windows-1.0.2-mc1.16.4

FarmersDelight-1.16.3-0.4.0

fairylights-4.0.4-1.16.4

randomloot-1.16.4-2.3.5

journeymap-1.16.5-5.7.3

TreeChop-1.16.4-0.14.4

OptiFine_1.16.5_HD_U_G8

GeneticAnimals-0_6_29

cfm-7.0.0pre22-1.16.3

SimpleCoreLib-1.16.4-2.0.4.3

MoreFlowerBushes-1.0

YungsApi-1.16.4-Forge-4

mcw-furniture-2.0.1-mc1.16.5

QuarkOPlenty-1.16.5-1.2.1

TenshiLib-1.16.3-1.3.0

betterweather-1.2.9

DungeonCrawl-1.16.3-2.2.4

kotlinforforge-1.10.0-obf

AutoRegLib-1.6-47

Quark-r2.4-308

betteranimalsplus-1.16.4-10.1.0

chiselsandbits-0.3.4-RELEASE

alexsmobs-1.7.1

simplefarming-1.16.4-1.3.5

amb-1.16.4-0.1.1

BiomesOPlenty-1.16.4-13.0.0.431-universal

Quote from coolgamerslush

Try removing these mods:

BetterCaves

TreeChop
SimpleFarming

if I do this I get a message saying this mod was installed with better caves please fix this problem

and then it crashes before the server starts...

gonna have to start a new world?