We are aware that there is an issue currently with SVG icons in various places in M.App Enterprise.
This comes from a change in Chromium - so writing this post - only Chrome and Edge are currently affected, but it is only a matter of time until Firefox also changes their behaviour of SVG handling.
As soon as we do have a fix for this issue a hotfix release will be done for M.App Enterprise 16.13 and 17.0
⚠️
In the meantime there is a possible workaround:
svg svg, svg > svg {
width: auto !important;
height: auto !important;
max-width: none !important;
max-height: none !important;
}
.MuiSvgIcon-root svg {
width: auto !important;
height: auto !important;
}