Checklist

• I have tried ALL of the steps mentioned in the troubleshooting guide.
• I have searched for this in the issues tab.

Describe the Bug

Hi, there! Just noticed a wierd bug in 2.11 and updated 2.15x + reboot etc. nothing helped. If a filename contains % in the filename (e.g. image-scaled-50%.png) it will cause Upscayl to hang on indefinetly. Finally, after half an hour of troubleshooting with various img formats and inputs, reboots, figured it was this symbol causing it. Removing it from filename fixed the problem.

To Reproduce

create a filename containing % symbol e.g. something-50%.png

Upscayl Version (or commit hash)

2.15.0

Platform

Windows

OS Version

Win 10 Pro 22H2 latest updates

GPU Name

Nvidia

Expected Behavior

No response

Screenshots

No response

Logs

?? Resetting image paths
?? Dropped file:  {"type":"image/png","filePath":"Z:\\screenshot-50%.png","extension":"png"}
?? Setting image path:  Z:\screenshot-50%.png
?? Setting output path:  Z:
?? imagePath:  Z:\screenshot-50%.png
?? Extension:  png
?? Resetting Upscaled Image Path
?? DOUBLE_UPSCAYL
?? Stopping Upscayl
?? Resetting image paths
?? BACKEND REPORTED:  ?? Updating Stopped:  true
?? BACKEND REPORTED:  ?? Updating Stopped:  true
?? Resetting image paths
?? BACKEND REPORTED:  ?? File Operation Cancelled
?? BACKEND REPORTED:  ?? File Operation Cancelled