Breakpoints still left even though they are removed in Chrome

[ono-max]

Your environment

• ruby -v:
  ruby 2.6.8p205 (2021-07-07 revision 67951) [x86_64-darwin19]

Describe the bug
6,3,10,8
After setting breakpoints on lines 3, 6, 8, and 10, I removed them. Then, I click "Resume script execution". However, debugger stops at the breakpoint that I set before as follows.

To Reproduce

module Foo
  class Bar
    def self.a
      "hello"
    end
  end
  Bar.a
  bar = Bar.new
end

Expected behavior
It should be finished without stopping.

Additional context
Add any other context about the problem here.