LineageOS 15.1 - No Weather Provider

Hi, I'm not sure whether this is a problem just for me because I'm doing something wrong or whether more people are experiencing this, but I currently cannot select any weather provider so I can't use the cLock widget. I've got both AccuWeather and the LineageOS Yahoo Weather apps installed with location permitions but I still am not getting any apps on the picker where I would normally select a default weather app from. Would somebody be kind enough as to offer some help or some information as to what is going on please?