Qt5Script is deprecated since 5.5, was only ever meant as a porting aid from Qt4, and should be ported away to QJSEngine. It is also a stepping stone to eventually port to Qt6, whenever that is possible. Issue has briefly come up here, but it is unclear if upstream is aware of the need to port away from it: https://github.com/opentoonz/opentoonz/issues/731
https://github.com/opentoonz/opentoonz/issues/5206#issuecomment-2195594120 > The de facto situation with OpenToonz development is that it is basically stalled. > In the last two years there has been some minor features included (mostly some > FXs), and some bugs fixed, fortunately, but there is no major planned development > going on. Nor a real development team, management structure, nor goals. > Most of new features now come as ports from Tahoma 2D, and that's it. > > Sadly, this is the current situation.