This is something which, if it hasn’t been tested in front of a court already, surely will be before too long now that the tax rules have changed.
In circumstances where an employer has a contractual obligations to their employees, one of which is the time of payment, and due to a failure/breach on the employer’s part the employee ends up at a material financial disadvantage as a result of that breach, I would have thought it’d be actionable. But I’m no legal expert.