Bug 411882

Hello.
I have some problems with digikam.
I don't get results using the panorama and image stack functions.
I have the same problem with both jpeg and raw files.
The problem was present with fedora 29 and is now present with fedora 30.
With fedora 29 the problem occurred about a month ago, before it worked well.
I updated to fedora 30 yesterday and the problem continues.
I also tried the hugin downgrade.
Even with showfoto I don't get results
Sorry: translated with google translate

via konsole
[rossano@localhost ~]$ digikam 
Attribute Qt::AA_ShareOpenGLContexts must be set before QCoreApplication is created. 
QFSFileEngine::open: No file name specified 
kf5.kxmlgui: Unhandled container to remove :  Digikam::DigikamApp 
QFSFileEngine::open: No file name specified 
QFSFileEngine::open: No file name specified 
QFSFileEngine::open: No file name specified 
QFSFileEngine::open: No file name specified 
QFSFileEngine::open: No file name specified 
QFSFileEngine::open: No file name specified

when I ask for image stack
QObject::connect: No such signal DigikamGenericExpoBlendingPlugin::ExpoBlendingThread::starting(Digikam::ExpoBlendingActionData) 
QObject::connect: No such signal DigikamGenericExpoBlendingPlugin::ExpoBlendingThread::finished(Digikam::ExpoBlendingActionData) 
QObject::connect: No such signal DigikamGenericExpoBlendingPlugin::ExpoBlendingThread::starting(Digikam::ExpoBlendingActionData) 
QObject::connect: No such signal DigikamGenericExpoBlendingPlugin::ExpoBlendingThread::finished(Digikam::ExpoBlendingActionData)
QObject::disconnect: No such signal DigikamGenericExpoBlendingPlugin::ExpoBlendingThread::finished(Digikam::ExpoBlendingActionData
)

when I ask for panorama
Cropping... 
digikam.database: No location could be retrieved for "/tmp/digiKam-panorama-tmp-Imyzzs/preview.jpg" 
Parsing error. Unexpected [0] 

  106 |m g0 i0 m0 p0 
      !....^   at line 106 column 5 
Invalid value for gamma 0.000000. Must be bigger than zero

Operating System: Fedora 30
KDE Plasma Version: 5.15.5
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.4
Kernel Version: 5.2.13-200.fc30.x86_64
OS Type: 64-bit
Processors: 4 × Intel® Core™ i5-4440 CPU @ 3.10GHz
Memory: 7,7 GiB