Environment

• TeXstudio: 4.8.6
• Qt: 6.8.2
• OS: Win10
• TeX distribution: texlive

Actual behavior

After I build a .tex file, I want to view it in the internal pdf-viewer(F7), then texstudio crashes. But the PDFfile has no problem because I can view it by external PDF-reader, such as Acrobat. I think the building is successful, but the internal pdf-viewer has some wrong.
More information: If change the Render Backend of internal pdf-viewer from Splash to Arthur, then no crash, but the PDF in the viewer only show Chinese character, any number and letter disappear, see attachment

. PDFfile is normal.
4.8.5version has the same problem.

How to reproduce

It only appear on my computer, I don't know how to reproduce.