[Therion] Xtherion error when importing JPG in Windows

Hi, Several users got the error on the image attached when trying to import a JPG image on XTherion on Windows. One single user succeded importing a JPG image on XTherion on Windows. These XTherions were able to import a PNG image. They were all using Therion for Windows available at https://therion.speleo.sk/downloads/therion-setup-dev.exe How can they import JPG images? Regards, Rodrigo Severo