An anomaly appears randomly and interferes with your exploration of a location.
There are 6 types of anomalies.
Mineral anomaly: This anomaly allows you to see the name of only one hidden object, not the entire list. 
Reflection anomaly: The location and the names of the hidden objects appear as if in a mirror. 
Dark Entities anomaly: Dark shadows float around a location chaotically, hindering the search for objects. 
Time Shift anomaly: This anomaly speeds up the time you have to search for objects in a location. 
Invisibility anomaly: objects hidden in a location become invisible. They can be seen through the special Magic Magnifier. 
Soap Bubbles anomaly: Bubbles will fly around a location, interfering with the selection of objects. You can pop bubbles by pressing on them.