Bookmarks for media library can not be removed

The content of "ml.xspf" with a blank Media Library:

<?xml version="1.0" encoding="UTF-8"?>
<playlist xmlns="http://xspf.org/ns/0/" xmlns:vlc="http://www.videolan.org/vlc/playlist/ns/0/" version="1">
	<title>Media Library</title>
	<trackList>
	</trackList>
	<extension application="http://www.videolan.org/vlc/playlist/0">
	</extension>
</playlist>

The content of "ml.xspf" after inserting a video object in the Media Library:

<?xml version="1.0" encoding="UTF-8"?>
<playlist xmlns="http://xspf.org/ns/0/" xmlns:vlc="http://www.videolan.org/vlc/playlist/ns/0/" version="1">
	<title>Media Library</title>
	<trackList>
		<track>
			<location>file:///D:/VLC/Beispiele/Wildlife/Wildlife.mp4</location>
			<duration>29738</duration>
			<extension application="http://www.videolan.org/vlc/playlist/0">
				<vlc:id>0</vlc:id>
			</extension>
		</track>
	</trackList>
	<extension application="http://www.videolan.org/vlc/playlist/0">
			<vlc:item tid="0"/>
	</extension>
</playlist>

The content of "ml.xspf" after creating a bookmark for the video object in the Media Library and closing the VLC:

<?xml version="1.0" encoding="UTF-8"?>
<playlist xmlns="http://xspf.org/ns/0/" xmlns:vlc="http://www.videolan.org/vlc/playlist/ns/0/" version="1">
	<title>Media Library</title>
	<trackList>
		<track>
			<location>file:///D:/VLC/Beispiele/Wildlife/Wildlife.mp4</location>
			<duration>29738</duration>
			<extension application="http://www.videolan.org/vlc/playlist/0">
				<vlc:id>0</vlc:id>
				<vlc:option>bookmarks={name=Wildlife.mp4 [#0](https://code.videolan.org/videolan/vlc/-/issues/0),bytes=2197471,time=8}</vlc:option>
			</extension>
		</track>
	</trackList>
	<extension application="http://www.videolan.org/vlc/playlist/0">
			<vlc:item tid="0"/>
	</extension>
</playlist>

After a restart of VLC to be deleted the bookmark. The video object is to be started.

I open Menu -> Playback -> Custom Bookmarks and see the bookmark. Now I open with "Manage" the "Edit Bookmarks" dialog and see here no bookmarks.

What can I do? - I create a bookmark and now I see two bookmarks.

With the "Clear" button do I remove both bookmarks and leave with the "Close" button the dialog. Then I close the VLC.

The content of "ml.xspf" after removing the bookmark and close the VLC:

<?xml version="1.0" encoding="UTF-8"?>
<playlist xmlns="http://xspf.org/ns/0/" xmlns:vlc="http://www.videolan.org/vlc/playlist/ns/0/" version="1">
	<title>Media Library</title>
	<trackList>
		<track>
			<location>file:///D:/VLC/Beispiele/Wildlife/Wildlife.mp4</location>
			<duration>29738</duration>
			<extension application="http://www.videolan.org/vlc/playlist/0">
				<vlc:id>0</vlc:id>
				<vlc:option>bookmarks={name=Wildlife.mp4 [#0](https://code.videolan.org/videolan/vlc/-/issues/0),bytes=2197471,time=8}</vlc:option>
				<vlc:option>bookmarks={name=Wildlife.mp4 [#0](https://code.videolan.org/videolan/vlc/-/issues/0),bytes=2197471,time=8},{name=Wildlife.mp4 [#0](https://code.videolan.org/videolan/vlc/-/issues/0),bytes=2230593,time=8}</vlc:option>
				<vlc:option>bookmarks=</vlc:option>
			</extension>
		</track>
	</trackList>
	<extension application="http://www.videolan.org/vlc/playlist/0">
			<vlc:item tid="0"/>
	</extension>
</playlist>

I start the VLC new and now I have two bookmarks for the video object in the media library.