iOS app glitch

[njmckenzie96 5]

Latest update the app goes black if the network changes from WiFi to Data. So, if I’ve had it running in the background on WiFi, if I later open the app on data, all I get is a black screen. I have to force close and then it works. I’m not entirely sure it’s because of a data switch (that’s just what I’ve run into) it’s possible it’s if the app has been running in the background for a while. 

Edited 41 minutes ago by njmckenzie96
Added clarification