After changing SolusIO branding first log in briefly shows the default SolusIO logo

Symptoms 

After changing SolusIO branding in SolusIO > Settings > User Area first log in into Client Area briefly shows the default SolusIO logo then changes to the custom one.

Cause

This is confirmed as SolusIO bug with ID SIO-2398 that was fixed in SolusIO version 1.1.14467.

Resolution

Update SolusIO to the latest version.