If your HCM Cloud app is showing the following error, read on for the fix.
The request could not be understood by the server due to malformed syntax
Note: Read all of the steps before continuing. You do not want to choose "Done".
Click the Gear icon at the top right:
Do NOT click Done at the top right!
Instead, force quit the app. How to force quit
Now re-open the app and it should function correctly.