QTableWidget setColumnWidth didn't work in Qt6, but work in Qt5

[Knightly]

In Qt6(6.6.1), if I use setStyleSheet, the setColumnWidth didn't work. but in Qt5(5.11.2), it works well.

here is the code.
setColumnCount(2)
setStyleSheet("QTableView { border:none; background:transparent;}")
setColumnWidth(0, 30)
setColumnWidth(0, 60)

I try to use ResizeMode.ResizeToContents, ResizeMode.Fixed, they didn't work.
So is it an issue or is there a way to set the column width in QSS?

[SGaist]

Hi and welcome to devnet,

Which OS are you on ?

[Knightly]

@SGaist hi, we use Windows 10

[Knightly]

@SGaist and I use setCellWidget to add widget, the widget is a QLabel.

labelWidget.setFixedWidth(30)
setCellWidget(0,0, labelWidget)

[Knightly]

use setSectionResizeMode(QHeaderView.ResizeMode.ResizeToContents), and remove setColumnWidth, it works(not perfect).
but I still don't know why ResizeMode.Fixed, and setColumnWidth(0, 30) didn't work.

[Christian Ehrlicher]

Upgrade to a more recent version: https://bugreports.qt.io/browse/QTBUG-122109