Since update to kontact 5.0.2 the default cursor is pointing_hand everywhere in the main window. not affected: dialogs and menus kontact-components (like kmail, korganizer...) if they are running stand-alone. Reproducible: Always Steps to Reproduce: start contact move the cursor over eg a link in the overview. the cursor changes to pointing_hand move the cursor further. the cursor does not change back to left_ptr until you restart kontact
This bug has never been confirmed for a Kontact version that is based on KDE Frameworks, except possibly a Technology Preview version 5.0.x. Those versions differ significantly from the old 4.x series. Therefore, I plan to close it in around two or three months. In the meantime, it is set to WAITINGFORINFO to give reporters the opportunity to check if it is still valid. As soon as someone confirms it for a recent version (at least 5.1, ideally even more recent), I'll gladly reopen it. Please understand that we lack the manpower to triage bugs reported for versions almost two years beyond their end of life.
Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.1 aka 15.12; preferably much more recent), please open a new one unless it already exists. Thank you for all your input.