Chunk update

Hello everyone
So when I teleport a player to another world ,well... It's kind of teleported but the chunks are not updating
Old chunk was displayed while only blocks updated
However, ONE chunk will somehow update if player break or place a block in that chunk
For example, X = stone Y = grass(old chunk) and they just stack together
I've tried this (by @dktapps in the old forum) but it is not working

PHP:

$player->getLevel()->clearChunkCache($player->getFloorX() >> 4, $player->getFloorZ() >> 4);
$player->getLevel()->requestChunk($player->getFloorX() >> 4, $player->getFloorZ() >> 4, $player); 


Thanks for helping

 

Try calling Chunk::setChanged()

 

It seems to be not working
or I am not sure how to call it correctly?

PHP:

$player->getLevel()->getChunk($player->getFloorX() >> 4 , $player->getFloorZ() >> 4)->setChanged();


 

Same thing happens to me too. Dunno how to fix.