Filenames with %VAR% patterns cause silent hang
Author: XXXCodeproCreated May 28, 2026Updated May 28, 2026
On Windows, when an input image filename contains a %VAR% pattern (e.g. image-%SHORTCODE%-2026.jpg from gallery-dl downloads with unexpanded template variables), Upscayl silently hangs after UPSCAYL with no progress, no error toast, and no way for the user to know what happened.
Source: Yalantis/uCrop