Links Disappearing from BookMark File?

Hi All: I have suspected this for a while. In both my own L Y N X machine as 
well as Shellworld, I have items which either go away after adding a new 
bookmark, or an actual link name is replaced with "hidden-link" In that case I 
can still visit the site. Has any1 else ever had this happen-and-are their 
solutions? I am running a January 2023 Debian SID version. Thanks so much in 
advance.
On my local machine, I added a bookmark-and-maybe 5 links went away. In 28years 
I've never seen this.
Chime