Have a look at DDA.log, which can be found in folder C:\Users\<name>\AppData\Local\Autodesk\ODIS.
I'll bet is riddled with lines like this:
2024-08-05T15:37:23.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:24.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:25.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:26.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:27.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:27.343 [DDA: 9000, single] [Installer INFO] [ Autodesk::DDA::BaseHandler::{ctor}::<lambda_20a742db0dddb05b9a2b39e951593bef>::operator () ] [IPC] UI ChannelWin::Listen: WaitForSingleObject timeout. error_code: 997, pipe_name: \\.\pipe\adsk_dda_sdk
2024-08-05T15:37:28.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:29.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:30.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
2024-08-05T15:37:31.138 [DDA: 9000, single] [Installer DEBUG] [ Autodesk::DDA::OPHandler::OPHandlerImpl::SmoothProgressUpdateHandler ] SmoothProgressUpdateHandler: {63ED313A-65E2-366D-B7BA-F92DA676B74D} with params progress: 0.000000 anchor: 0.000000 target: 100.000000 elementType: Applications totalProgressTime: 0.000000 timeWithoutProgress: 0.000000 numberOfProgressUpdates: 0.000000
The 'solution' in this case is to kill the installer and start it again and repeat that until it actually starts installing.
The progress bar is a joke, as I mentioned in another post. If nothing happens for a while, the installer increases the progress bar anyway until it reaches 97% and will stay there indefinitely. So yeah, that's a real progress indicator.😡