Summary After finishing a sketch in 5min Sketch on iPad, the canvas becomes completely black. The drawing cannot be viewed, and when saved, the image is also recorded as a solid black image.Steps to Reproduce 1. Launch the app on iPad 2. Start a new sketch 3. Draw normally 4. Finish the sketch 5. Check the canvas → turns completely black 6. Save or view in history → image is also completely black Expected Result The completed sketch should be displayed correctly and saved with all drawn content preserved.Actual Result - The canvas turns completely black after finishing the sketch - The drawing is not visible - The saved image and history preview are also completely black - The sketch is effectively lostFrequency Occurs frequently / consistentlyEnvironment - Device: iPad - OS: iPadOS 26.4 - App Version: Latest version (as of reporting)Additional Notes - The issue does not occur during drawing, only after finishing - Restarting the app does not resolve the issue - No error message is displayed - Occurs in both free and paid versions - Likely occurs during the final rendering or save proces

Please add a feature to erase selected sketches, and a button to either continue sketching after the timer ends or finish manually.

課金して使っていますが、15分までのタイマーしかないので、20分でもクロッキーできるようにしていただけますと幸いです。

描いた絵をギャラリーで見ようとすると真っ黒になる