MixRadio gigs search uses your location information to find music events. The displayed content doesn't necessarily match with the current location if location information is missing or disabled. Please, make sure that use of the location data is enabled in both, the phone location settings and MixRadio settings.
To check the settings: Go to Settings > select location > switch on location services. Go to MixRadio > select settings > select location > switch on location services.
Please note. This service may not be available in all countries or regions.