Icon glitch after app resume

Hello there !
I’m encountering an issue with ionicons and Android app resume.
After taking a picture, I had on some devices the famous App crash related to the Android Lifecycle.
I’ve managed to get back the state, but now I’m having an issue with the icons of ionic (Font awesome is not causing any trouble).
When the app is restored, the icons are not icons anymore.
For example ion-home become Ï...,,
Here is an example :

Do you have an idea on how can I solve this ?