Nuxt not loading nested component - vue.js

Question

I've created a third party components library as described on this page https://nuxtjs.org/blog/improve-your-developer-experience-with-nuxt-components#third-party-component-library. Than I used the components in a new clean nuxt project. I have a BaseCard component which has 3 slots and I have a BaseImage component. Now I want to use the BaseImage component in a slot from the BaseCard component but it is not rendered. If I add an additional BaseImage component outside of the BaseCard component, than all BaseImage components are rendered (see screenshots below). Seems like that the components within a slot are not loaded.
Screenshots
without additional BaseImage
with additional BaseImage
Code
Don't work
<template>
<div>
<BaseCard>
<template v-slot:image>
<BaseImage
imgSrc="https://picsum.photos/400/400?random=1"
imgAlt="Some alt tag"
/>
</template>
<template v-slot:header>
Here might be a page title
</template>
<template v-slot:content>
<p>
Lorem ipsum dolor sit amet consectetur adipisicing elit. Eum
pariatur distinctio cum. Ratione doloribus asperiores eaque
laboriosam repellendus perferendis iusto magni in necessitatibus
exercitationem eum expedita aliquam autem, tenetur itaque.
</p>
</template>
</BaseCard>
</div>
</template>
<script lang="ts">
import Vue from "vue";
export default Vue.extend({});
</script>
works
<template>
<div>
<BaseCard>
<template v-slot:image>
<BaseImage
imgSrc="https://picsum.photos/400/400?random=1"
imgAlt="Some alt tag"
/>
</template>
<template v-slot:header>
Here might be a page title
</template>
<template v-slot:content>
<p>
Lorem ipsum dolor sit amet consectetur adipisicing elit. Eum
pariatur distinctio cum. Ratione doloribus asperiores eaque
laboriosam repellendus perferendis iusto magni in necessitatibus
exercitationem eum expedita aliquam autem, tenetur itaque.
</p>
</template>
</BaseCard>
<BaseImage
imgSrc="https://picsum.photos/400/400?random=1"
imgAlt="Some alt tag"
/>
</div>
</template>
<script lang="ts">
import Vue from "vue";
export default Vue.extend({});
</script>
nuxt.config.js (shared-components is my library for the components)
export default {
// Target: https://go.nuxtjs.dev/config-target
target: "static",
// Global page headers: https://go.nuxtjs.dev/config-head
head: {
title: "demo",
htmlAttrs: {
lang: "en",
},
meta: [
{ charset: "utf-8" },
{ name: "viewport", content: "width=device-width, initial-scale=1" },
{ hid: "description", name: "description", content: "" },
],
link: [{ rel: "icon", type: "image/x-icon", href: "/favicon.ico" }],
},
// Global CSS: https://go.nuxtjs.dev/config-css
css: ["#/assets/scss/variables.scss"],
styleResources: {
scss: ["./assets/scss/*.scss"],
},
// Plugins to run before rendering page: https://go.nuxtjs.dev/config-plugins
plugins: [],
// Auto import components: https://go.nuxtjs.dev/config-components
components: true,
// Modules for dev and build (recommended): https://go.nuxtjs.dev/config-modules
buildModules: [
// https://go.nuxtjs.dev/typescript
"#nuxt/typescript-build",
"shared-components",
],
// Modules: https://go.nuxtjs.dev/config-modules
modules: ["#nuxtjs/style-resources"],
// Build Configuration: https://go.nuxtjs.dev/config-build
build: {},
};
I use nuxt 2.15.2.