i will check with latest version 4.6.21666.0428. For the different devices yes i checked it on iPhone 11 pro, iPhone 7, iPhone 8. For the timezone difference no problem just let me know your available timings i will available at that time as well not an issue for me. Sure take your time and let me know if anything else is required from my side.
I will post you by checking it will latest available version as mentioned above.