Hi,
I have never worked on SAP PERSONA but you can try below things
1)try to use different user or J2ee_admin since it might be same user multiple session case
2) Try with different browser since plugins can behave unexpectedly
3)Make entry in host file also
4) check dev_icm logs
5) check on ABAP side for dumps in ST22
Warm Regards,
Sumit
