Release : 4.x
Component : PRIVILEGED ACCESS MANAGEMENT
A possible PAM issue that has been detailed in an engineering case #DE539784.
Workaround #1 --- Set "Enable Input Method Editor" to "On" and set "Select remote Keyboard Layout" to "Others" as shown below
Workaround #2 ---Use RDP Proxy.
As of writing this document Engineering case #DE539784 is filed for this issue. The workaround is the only available fix and definitive fix not known.