If Qt Library is build on other machine and then copied to other, it strangely still refers old uic path

Very strange but if Qt is build at first machine and copied to second, even after having qt.conf with new path as a prefix: Prefix=/Users/user/My/Path/To/Qt, For some reason it still looks for UIC at old path (where it got build)

If I do qmake -query, it returns the new paths,but qmake is still using the initial path for 'uic'(which is old one) though it picks correct new path for moc.

Further debugging I see for some reason QT_TOOL.uic.binary is still pointing to old path. Manually editing the correct path in "qtbase/mkspecs/modules/qt_tool_uic.pri" seems the only way to get it work.