i wanted use Database Snapshot Services, because making genesis to last blcock takes too much time.... so i used POLKACHU site, the code is.

" curl -o - -L https://snapshots.polkachu.com/snapshots/polkadot/polkadot_16262141.tar.lz4 | lz4 -c -d - | tar -x -C YOUR_DATABASE_LOCATION "

location changed like this
->
"curl -o - -L https://snapshots.polkachu.com/snapshots/polkadot/polkadot_16262141.tar.lz4 | lz4 -c -d - | tar -x -C ~/.local/share/polkadot/chains/polkadot"


all seems well downloaded, and i use the command
"polkadot  --database=RocksDb --pruning=1000"
but nothing changed, when i see telemetry, it start from zero.......

what is the problem?? did i miss something??