Guys, could you please help me with an overclocking issue?

Today I changed my overclock settings on a 6x1050ti rig, however it reverted to stock mem clocks. Whatever I have tried, I am yet to make the rig overclock. I can change core, fan speed and temp, however mem is stuck at 3504.

I have tried: several reboots, a hundred reloads, deleting the miner (it appears back with the same name) and experimented with different clock speeds, with no luck.

Do you have any suggestions?