Getting TemplateNotFoundException at email template running on Red Hat Build of Keycloak 22

Issue

I am getting the following error on my custom email template configuration:

Caused by: freemarker.template.TemplateNotFoundException: Template not found for name "html/template.ftl".
The name was interpreted by this TemplateLoader: org.keycloak.theme.freemarker.DefaultFreeMarkerProvider$ThemeTemplateLoader@218e03cc.
    at freemarker.template.Configuration.getTemplate(Configuration.java:2957)
    at freemarker.core.Environment.getTemplateForInclusion(Environment.java:3062)
    at freemarker.core.Environment.getTemplateForInclusion(Environment.java:3024)
    at freemarker.core.Environment.getTemplateForImporting(Environment.java:3186)
    at freemarker.core.Environment.importLib(Environment.java:3171)
    at freemarker.core.Environment.importLib(Environment.java:3135)
    at freemarker.core.LibraryLoad.accept(LibraryLoad.java:65)
    ... 51 more
2024-04-16 16:34:31,144 ERROR [org.keycloak.services.resources.admin.RealmAdminResource] (executor-thread-35) Failed to send email 

My email template folder looks like:

.
├── html
│   └── email-test.ftl
├── text
│   └── email-test.ftl