Editor gone haywire. Once you set bold it won't unbold. Once you make a link everything becomes that link.

We are having serious issues with the text editor. I type in a line of text.. no problem
I want to make a link bold so I add that text, make it bold and link it.
I wish to continue my sentence.. everything added stays linked and bold
Drop down a line so I can backspace to the link. Same problem
Selecting to turn off bold entire article goes bold.
Highlight all and select unbold nothing.

Gave up writing new articles... Better for my nerves and health.
Please fix so I can restore my sanity.