System

UVtools v4.0.2 X64
Operative system: Darwin 23.6.0 Darwin Kernel Version 23.6.0: Thu Jun 20 00:24:53 PDT 2024; root:xnu-10063.140.29.0.1~15/RELEASE_ARM64_T8103 X64
Processor: Apple M1
Processor cores: 8
Memory RAM: 5.07 / 8.23 GB
Runtime: osx.14-x64
Framework: .NET 6.0.22
AvaloniaUI: 11.0.4
OpenCV: 4.8.0

Sreens, resolution, working area, usable area:
1: 1440 x 900 @ 100% (Primary)
    WA: 1440 x 813    UA: 1440 x 813

Path:       /Applications/UVtools.app/Contents/MacOS/
Executable: /Applications/UVtools.app/Contents/MacOS/UVtools
Loaded file: test [Version: 516] [Class: PhotonWorkshopFile]

Printer and Slicer

• Printer: Anycubic Photon Mono 4K
• Slicer: LycheeSlicer

Description of the bug

"Save as..." dialog has no file extension specified by default. Saving the file without extension by default makes saving it again impossible.

Expected behavior after saving file without extension:
Save dialog opens, allowing to specify filename

Actual behavior:
"Unable to find the target extension." message is shown.

How to reproduce

1. Open file with ".pwma" extension
2. Edit it
3. Save it through "Save as..." without extension (possibly by mistake as it has no extension in save dialog by default)
4. Try to save it again using "Save as..."

Files

No response