Cross on RHS to enter qso not working

[G3YUE]

Not a big issue but I have updated to v 2.28.0.0 and find that the cross on the right hand side of the window is inactive even after entering callsign and report info. I always used to use it to enter qso into the database. If I hit enter key after callsign entry the qso is entered fine.

[G3YUE]

Strangely enough, all seems back to normal. The cross is now as normal, rather than 'greyed out'. Weird.