Thank you very much.
The amendment seeks to make a substantive modification by adding new elements to the preamble.
As House of Commons Procedure and Practice, third edition, states on page 774:
In the case of a bill that has been referred to a committee after second reading, a substantive amendment to the preamble is admissible only if it is rendered necessary by amendments made to the bill.
In the opinion of the chair, the proposed amendment is substantive and is therefore inadmissible. That's the ruling on BQ-8.