Odd, I tried disabling all themes and plugins (just in case) leaving only the CSS Snippet that I use and had the same issue.
Posting below just in case anyone else has insight as to something I might have in there that would break it.
/*Change header font */
.view-header-title { font-family: sigurd; }
/* Make background a softer warm white */
.theme-light.minimal-light-white {
--background-primary: #e4e1e0;
--background-secondary: #ded7c9;
--background-secondary-alt: #e4e1e0; }
/* Change header font in editing view */
.cm-header-1,
.cm-header-2,
.cm-header-3,
.cm-header-4,
.cm-header-5,
.cm-header-6,
.markdown-preview-view h1,
.markdown-preview-view h2,
.markdown-preview-view h3,
.markdown-preview-view h4,
.markdown-preview-view h5,
.markdown-preview-view h6 {
font-family: sigurd knight !important; }
/* Change default document font */
.markdown-source-view.mod-cm6 .cm-scroller {
font-family: inferi !important; }
/* Change Line Break to a gradient that fades in the center*/
.markdown-preview-view hr,
.markdown-source-view.mod-cm6 hr {
border-image: linear-gradient(to right, #17567a, rgba(0,0,0,0), #17567a);
border-image-slice: .05%; }
/* Change heading colors */
body.colorful-headings {
--h1-color: #7d1418;
--h2-color: #35653f;
--h3-color: #17567a;
--h4-color: #212121;
--h5-color: #6c3b96;
--h6-color: #2a5670; }
/* Change export font */
@media print {
.print .markdown-preview-view {
font-family: inferi;
}
}
/* Settings coloration changes */
.vertical-tab-header-group-title {
--text-faint: #514f4e;
--font-family: sigurd !important; }
.dropdown {
background-color: #ded7c9;
--interactive-normal: #ded7c9; }
/* Gradient line on centered H1 */
.markdown-preview-view h1 {
display: flex;
width: 100%;
align-items: center; }
.markdown-preview-view h1:after {
content: '';
background-image: linear-gradient(90deg, #17567a, rgba(0,0,0,0));
height: .1em;
margin: .5em;
flex: 1; }
.markdown-preview-view h1:before {
content: '';
background-image: linear-gradient(270deg, #17567a, rgba(0,0,0,0));
height: .1em;
margin: .5em;
flex: 1; }
span.cm-header.cm-header-1 {
display: flex;
width: 100%;
align-items: center;}
span.cm-header.cm-header-1:after {
content: ' ';
background-image: linear-gradient(90deg, #17567a, rgba(0,0,0,0));
height: .08em;
margin: .5em;
flex: 1; }
span.cm-header.cm-header-1:before {
content: ' ';
background-image: linear-gradient(270deg, #17567a, rgba(0,0,0,0));
height: .08em;
margin: .5em;
flex: 1; }
Thanks to anyone who might have insight!