In October Sony released a software update for the M4 Aqua (SW 26.1.A.2.167)
If you have not already, it is encouraged that you update your device immediately.
Key fixes & improvements included in the update:
To download, on the device find Settings >About >Software Update
Your build should be: 26.1.A.2.167
*Preinstall apps and corresponding data will remain if you have updated them at least once.
* All apps, except FaceLock, can be downloaded again from the Google™ Play Store (where available).