Can't highlight text without highlighting EVERYTHING

[Geobop]

I use Dreamweaver on a Mac. This problem started several days ago.

Suppose I highlight the woreds "This problem" in the sentence above. As I move the cursor to choose Edit > Copy or down to make the text bold or italicized, all the text the cursor passes over is highlighted. Long story short, I can no long cut and paste individual words or blocks of text, unless I do it in HTML mode.

Is this a new bug? What's the fix? Thanks.

[L e n a · Accepted solution]

It looks like a corruption of the settings files. Have you tried resetting preferences or clearing the cache?

Unusual behavior in Dreamweaver? Try resetting preferences.

https://helpx.adobe.com/dreamweaver/kb/restore-preferences-dreamweaver.html

Clean Dreamweaver cache

https://www.dmxzone.com/go/16740/clearing-dreamweaver-s-cache/

[Nancy OShea]

If it just started happening in one document, try this:

1. Toggle between LIVE & DESIGN View with Ctrl/Cmd + Shift + F11 (function keys enabled).

2. Validate code and fix reported errors.  Window > Results > Validation... check document.