Replace is a zwave utility, unless something changed in the last update.
Most smartbulbs are Zigbee. Replace won’t do anything for them. (There are a few zwave smartbulbs, though, so if that’s what you have, it might help.)
As @sticks18 said, if the problem is a zigbee bulb it’s quite likely you can reconnect it without touching any of the smart apps.
If by chance it’s a GE link bulb, they have a known problem. (That’s why they are not on the SmartThings official compatibility list.) When they lose power, sometimes they wake up and don’t know who the coordinator is. That’s not supposed to happen, but it does.
The following FAQ can be used with any Zigbee bulb that can be reset with a blink method, which is why I asked the brand. (It won’t work with a Hue, for example.)