What constitutes a material change in circumstances?

The third alleged change in circumstances is that the applicant mother has not complied with the access order of Campbell J. and is in contempt. Repeated breaches of a final order can constitute a material change of circumstances: see Laurin v. Martin, [2005] O.J. No. 2899. In his affidavit evidence, the respondent father makes the allegation, “[t]he applicant cancels access and does not make it up as she is supposed to.” The only specific instances referred to are a change in pickup time on Wednesdays to 5:00 p.m. and summer vacation access in 2018. I will deal with each of these in turn.