sometimes it's not possible to expand details of cucumber steps in the execution screen

Sometimes it's not possible to expand details of cucumber steps in the execution screen.
This can be replicated by submiting a bundle zip file containing two similar cucumber json reports.

curl  -H "Content-Type: multipart/form-data" -u admin:admin -F "file=@data.zip" -X POST http://xray-vm.xpand-it.local/rest/raven/1.0/import/execution/bundle