If Quick release the axle compresses so you actually need more play before you tighten.
You could have tightened the lock nut up and its also tightened the cone.
You need to hold the cone with one cone spanner then tighten the lock nut against it.
There will be numerous videos on youtube, but as far as I can tell you have somehow managed to tighten the cone indirectly or you are using a QR.
Quick release or bolt up?
If Quick release the axle compresses so you actually need more play before you tighten.
You could have tightened the lock nut up and its also tightened the cone.
You need to hold the cone with one cone spanner then tighten the lock nut against it.
There will be numerous videos on youtube, but as far as I can tell you have somehow managed to tighten the cone indirectly or you are using a QR.