Comment 13 for bug 1971094

Same error here. Ubuntu 22.04, fresh install, openshot 2.6.1 installed with apt (see log below). After installing from ppa:openshot.developers it seems to work (I haven't testing too much, but at least I can see the main window)

(log for OpenShot-QT 2.6.1 installed via APT in Ubuntu 22.04 fresh install)

openshot-qt
Loaded modules from installed directory: /usr/lib/python3/dist-packages/openshot_qt
         app:INFO ------------------------------------------------
         app:INFO Wed Aug 24 08:07:00 2022
         app:INFO Starting new session
         app:INFO ------------------------------------------------
         app:INFO OpenShot (version 2.5.1)
         app:INFO ------------------------------------------------
         app:INFO openshot-qt version: 2.5.1
         app:INFO libopenshot version: 0.2.5
         app:INFO platform: Linux-5.15.0-46-generic-x86_64-with-glibc2.35
         app:INFO processor: x86_64
         app:INFO machine: x86_64
         app:INFO python version: 3.10.4
         app:INFO qt5 version: 5.15.3
         app:INFO pyqt5 version: 5.15.6
     metrics:ERROR Error determining OS version in metrics.py
    language:INFO Qt Detected Languages: ['es-AR', 'es']
    language:INFO LANG Environment Variable: es_AR.UTF-8
    language:INFO LOCALE Environment Variable:
    language:INFO OpenShot Preference Language: Default
project_data:INFO Setting default profile to HD 720p 30 fps
ZmqLogger::Connection - Error binding to tcp://*:5556. Switching to an available port.
ZmqLogger::Connection - Error binding to tcp://*:5556. Switching to an available port.
         app:INFO Setting font to Cantarell
logger_libopenshot:INFO Connecting to libopenshot with debug port: 5556
         app:INFO Setting custom dark theme
QMainWindow::addDockWidget: invalid 'area' argument
     ui_util:INFO Initializing UI for MainWindow
  exceptions:ERROR Unhandled Exception
Traceback (most recent call last):
  File "/usr/bin/openshot-qt", line 33, in <module>
    sys.exit(load_entry_point('openshot-qt==2.5.1', 'gui_scripts', 'openshot-qt')())
  File "/usr/lib/python3/dist-packages/openshot_qt/launch.py", line 97, in main
    app = OpenShotApp(argv)
  File "/usr/lib/python3/dist-packages/openshot_qt/classes/app.py", line 219, in __init__
    self.window = MainWindow(mode)
  File "/usr/lib/python3/dist-packages/openshot_qt/windows/main_window.py", line 2521, in __init__
    self.timeline = TimelineWebView(self)
  File "/usr/lib/python3/dist-packages/openshot_qt/windows/views/timeline_webview.py", line 3000, in __init__
    self.cache_renderer.setInterval(0.5 * 1000)
TypeError: setInterval(self, int): argument 1 has unexpected type 'float'
     version:INFO Found current version: {"error_rate_unstable": 0.05, "error_rate_stable": 0.16, "trans_rate_stable": 0.01, "openshot_version": "2.6.1", "trans_rate_unstable": 0.001}