Icons issue in perspective 8.1.13

when we restore a backup from another gateway we lose the icons used while designing. In console error 404 is shows for the selected icons. Refer the below image for more information.

I don’t believe .gwbk files copy the icon libraries when they’re created, so it would be possible to restore a gateway backup taken from a machine where the icon library is different than the machine the backup was restored to. If you have access to the machine the other gateway is installed on, you could just grab a copy of the material.svg icon library from the other machine’s Ignition directory (\Ignition\data\modules\com.inductiveautomation.perspective\icons\material.svg) and replace this gateway’s material.svg file with it so that the icon resources between the gateways are the same.