Android crash when scrolling upward in handwritten note

[harfn]

Device:
Lenovo TB373FU
MediaTek Dimensity 8300
8 GB RAM
Android 16
ZUI 17.5.10.057 Stable

Description:
I can open the note successfully, but Saber crashes as soon as I scroll upward inside the note.

The note mainly contains handwritten math notes. There is also a PDF background/example, but the PDF itself is not important for reproducing the issue.

The note preview in the overview appears corrupted and shows block-like rendering artifacts.

Steps to reproduce:

1. Open Saber
2. Open the affected note
3. Scroll upward
4. App crashes/closes

Expected behavior:
The note should scroll normally.

Actual behavior:
The app crashes when scrolling upward.

Additional info:
The .sba archive itself is readable and can be extracted successfully.

26-05-14 6.8-1.zip