Caps lock won't turn off automatically in Office 365 after running a particular program

Question

I am experiencing an issue with SBClient, which is an IBM Telnet client, interacting with Office 365 2016.

I upgraded a user to Office 365 2016. Before they run SBClient, when they use spell check in Office and have caps lock on, it will auto-correct a word and turn caps lock off. For example,

mANAGEMENT

will become

Management

and turn caps lock off.

This feature stops working once the SBClient has been run. Only a restart seems to restore the feature.

Does anyone have any suggestions on how to resolve this?