SW don't always enforce the 9 week disqualification where one unilaterally leaves a job. It may depend on the reason given at the time of applying for Jobseeker's Benefit (PRSI linked) or Allowance (means tested). If they do enforce the 9 weeks disqualification (in part or full) in this case then I would expect it to be from the date of termination, not the date of the career break if, during the career break, you have continued to be employed by them and salary and/or other benefits continue to accrue.