$job=(Get-VBRJob -name $job_name)
$tapejob=(Get-VBRTapeJob -name $job_name)
$job_session=$job.FindLastSession(); #FindLastSession is not there on tape jobs
$tape_session = Get-VBRSession -Job $tapejob -Last #need to do it like this
It works offcourse, but one and the same approach for all job type's is preferabele.
The name Get-VBRSession is misleading, it's only for tape jobs so why Veeam didn't name it Get-VBRTapeSession is