[BUG] Window always opens smaller than it was when closed, when it was originally full height

Is there an existing issue for this?

• I have searched the existing issues

Is the issue reproducible in Notepad++ without plugin?

• I have tried Notepad++ without plugin

Is the issue reproducible in portable version of Notepad++?

• I have tried portable version of Notepad++

Does the issue affect SciTE?

• I have tried SciTE

Description of the Issue

I keep Notepad++ open most of the time, with the window maximized to full height, and on the right side of my screen. I use Windows Snap features to make it full height.

After closing Notepad++ and opening it again, the window opens in the correct X position and widith, but only about 1/5th of the screen height. I have this issue on multiple computers.

Steps To Reproduce

1. Make Notepad++ full height with Windows Snap
2. Close Notepad++.
3. Open Notepad++.

Current Behavior

Window opens at about 1/5th the height of the screen.

Expected Behavior

Window opens at the full height of the screen, as it was before closing.

Debug Information

Notepad++ v8.9   (64-bit)
Build time: Dec 27 2025 - 14:28:33
Scintilla/Lexilla included: 5.5.8/5.4.6
Boost Regex included: 1_85
TinyXML-2 included: 11.0.0
nlohmann JSON included: 3.12.0
Path: C:\Program Files\Notepad++\notepad++.exe
Command Line: 
Admin mode: OFF
Local Conf mode: OFF
Cloud Config: OFF
Periodic Backup: ON
Placeholders: OFF
Scintilla Rendering Mode: SC_TECHNOLOGY_DEFAULT (0)
Multi-instance Mode: monoInst
asNotepad: OFF
File Status Auto-Detection: cdEnabledNew (for current file/tab only)
Dark Mode: ON
Display Info:
    primary monitor: 3840x2160, scaling 175%
    visible monitors count: 1
    installed Display Class adapters: 
        0000: Description - Intel(R) Arc(TM) A380 Graphics
        0000: DriverVersion - 32.0.101.8331
OS Name: Windows 11 Pro (64-bit)
OS Version: 25H2
OS Build: 26200.7623
Current ANSI codepage: 1252
Plugins: 
    mimeTools (3.1)
    NppConverter (4.7)
    NppExport (0.4)

Anything else?

No response