Large number of underlying C/C++ object has been deleted errors slows LiSP

[Rob7000]

Lots of underlying C/C++ object has been deleted errors On slower hardware, this makes the user interface unresponsive.

To Reproduce Steps to reproduce the behavior:

1. Add a Media cue (something longer than 10 seconds)
2. Start the media cue
3. Stop the media cue
4. Start the same media cue again
5. Observer the number of errors increase

Expected behavior No errors from starting and stopping a media cue

Linux Show Player version: develop branch

OS Version Ubuntu 21.04 Lubuntu

[s0600204]

Not seeing this myself (but then I'm not using Ubuntu on any of my devices).

• Do you know the exact commit sha-hash of develop that you're using?
• ...and the version of PyQt5 you have installed?
  • (Repology reports that it should be 5.15.4, is that correct?)
• How has LiSP been "installed"? (Flatpak, from source, etc.)
• How recent is the installation? (e.g. last week, last month)
  • ...and how recently was PyQt5 installed/updated? (Before or after the installation of LiSP?)
• Any custom plugins in use?
• Is this happening on more than one machine?
  • (It's unclear if you're using a version of Lubuntu which is based on Ubuntu 21.04, or if these are two different computers.)
• Are you starting media cues via the UI, via OSC, or does it not make a difference?
• Does it happen with other cue types?

(Sorry for the multitude of questions: just trying to work this out.)

[FrancescoCeruti]

This happens when QT (C++) objects are deleted but, for some reason, the python wrappers are not. I cannot reproduce it, even on Ubuntu 21.04, but I remember I've observed the same problem at some point, likely a bug in some PyQt version.

I'll close this for now.