Icons reset randomly

Happening on two seperate incidents

Incident 1

1. I had an Icon pack app installed (lines free)

2. Overnight the Icons all changed back to default Icons

Incident 2

1. I used anycon sticket icons (sticker style) and set them up for all my apps, partly individualised

2. I deleted the lines free Icons pack from my Phone

3. A big part of my Apps reverted back to default Icons although i have Set them all up with anycon Sticker icons

For Incident 2, i do not see a pattern which Icons were Set back to default icons. Some of the Apps have a designated anycon Sticker icons, some do not. Attached is a ascreenshot of how part of my screen menu looks now (e.g. moveat and onedrive are back to default icons). Hope you can fix it, really like the launcher