Hi, MD is my favorite editor. sometimes i worked on notes inadvertent in RT-editor. after that the URL to my attached files has changed:
this is a screenshot, inserted with STRG+V; MD-Editor (relative path to joplinprofile)
new textline added with RT-Editor (absolute path)

hello world (new line)
can i stop this? fatal for my portable version. or is there a tool to correct the URL?
So far, I haven't been able to reproduce this. I'm testing by:
Pasting a screenshot from the clipboard into the Markdown editor.
A line in the form  is added.
Switching to the Rich Text Editor.
Making a change to the note.
Switching back to the Markdown editor and verifying that the screenshot still has URL :/ae4f49dc6ad64740bd4785850b4f6540.
I'm running Joplin Portable on Windows 11 from a folder shared with the Windows 11 VM (Z:/). Are there any plugins installed? (See Help > About Joplin for a list).