How long does it take for EPG offset to take effect

Hello –

I just changed the EGP offset in the IPTV Simple Client, ticked “apply to all channels,” saved the changes, and tried disabling/reenabling IPTV Simple Client and restarting Kodi, but neither action has forced my new settings to take effect. 

Do I just have to wait for some period of time or is there a step I’m missing to get my new offset to take effect now?