Should She Omit Her Failed Probation?

Hi, recruiters! I’m looking for some guidance on a situation my partner is facing. She (32) spent 3 years in customer service for a well-known fashion brand before moving to their marketing team for an additional 2.5 years. Unfortunately, due to some internal issues and a toxic environment created by new hires, she decided to resign.

Two months after leaving, she landed a role as a marketing manager in a new industry (food and beverage) but just learned that she did not pass her probation period.

Would it be advisable for her to exclude this experience from her resume? I’m concerned that a 3-month role marked by a probation failure could deter potential employers and recruiters.

Thanks for any insight you can provide!