Icons fail to load on startup

Hi there, I am still fairly new to Linux. On about 1 in 3 start ups, my icons all stack on top of each other or stretch out across the whole task bar. They then either snap into their correct places or fail to load completely. This is what it looks like when it happens.

This is happening on both my Fedora PCs. I have tried a number of different themes, and icon packs but nothing seems to have had any effect so far. The icons will appear if I enter edit mode.

Any help is appreciated, I am unsure if this is my doing or if it would be worth filing a bug report.

Thanks!

System specs if useful