1.6.2 has scheduler instability. if a schedule is modified then only after initiating a run using 'run now' option scheduler will be able to initiate subsequent runs
2.Poor performance with connection type WCF with message encryption with windows authentication and transport encryption with windows authentication better to use .Net remoting secure.
3.Excel VBO has issues which is resolved in
http://portal.blueprism.com/customer-support/support-center#/path/1301681772
4. UI Automation spying has issues working with internet explorer. it just freeze
5.resources will wrongly report as offline to application server where it actually is available making the schedulers unable to create and trigger sessions and sometimes leave sessions in pending state (this is there even with later versions but in 6.2 this happens more often)
for additional known issues and bugs you can check the release notes of 6.3.0 version. which you can find from the blue prism portal>Products>previous releases.
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Jerin Jose
RPA Product SME
EY
Asia/Kolkata
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