HomePage Excerpt Error in Comment Link Text

I have version 3.5.3. My blog has many post titles that refer to coupon amounts and savings. I've noticed the homepage excerpts for some titles generate an error in the comment link/text. See attached image 'comments-link' which shows this
"/1 Dole Salads Coupon!">5 comments "
instead of
"5 comments"

Seems to happen when the title contains special characters like colon and dollar sign with a number:
e.g. COUPONS: Rare $1/1 Dole Salads Coupon!

Had a similar error on a post called COUPONS: $1/1 Horizon Dairy Product + More!

Is this a known error? What can be done until the software is fixed? Thanks