I can redo.
Downloading https://blog.invisiblethings.org/papers/2015/x86_harmful.pdf under current qube, save link as.
From command line of that qube:
qvm-convert-pdf ~/Downloads/x86_harmful.pdf
See progress bar of X/56
And then the pdf is replaced with ~/Downloads/x86_harmful.trusted.pdf
So there may have been some progress bar, sorry to have misled this.
Redoing the download into a fedora-36-dvm for gui version.
Opening a fedora instance. Pointing it to Intel x86 considered harmful (new paper) | The Invisible Things Blog
Right clicking to save pdf (save link as).
Download manager, show in folder.
Right click on file, convert to trusted pdf.
Not doing anything. looking at the progress bar.
I see no progress. Just the window closing.
And the original file is deleted (x86_harmful.pdf) where x86_harmful.trusted.pdf replaces it.
Can you do from command line and give the output here?
On my side I cannot replicate, and the command line gives more information then a GUI that opens and closes if no progress is given.
there are also other threads on this forum. I would also advise into renaming this post to something more relevant then Progress bar not loading. Progress bar of what? What is the disposable’svm template in global configuration? Details that would help people answer to your question. There is not enough meat here for anyone to be able to help you even if they wanted. Have you tried from another dispvm template? debian-11? whonix-wks-16? fedora-36?
That behavior alone without further details or troubleshooting is highly improbable. Are you trying to convert a 10000 pages document? Is the process getting killed because there is not enough memory available? Some more details would be needed. For example, downloading the same paper here, and attemtping a conversion from command line. And reporting here if that works, answering, maybe, some of the questions here maybe even some of yours.
Edit: similar if not duplicate Trusted file conversion progress window