In windows 2004, IME in DataGridView has some problem

[TempeBrennan]

• .NET Core Version:

Version: 5.0.0-preview.2.20160.6

• Have you experienced this same bug with .NET Framework?:

Yes

Problem description:

use this code to create a DataGridView

            var dataGridView1 = new DataGridView();
            dataGridView1.Width = 500;
            dataGridView1.Columns.Add(new DataGridViewTextBoxColumn());
            dataGridView1.Columns.Add(new DataGridViewTextBoxColumn());
            dataGridView1.Columns.Add(new DataGridViewTextBoxColumn());
            this.Controls.Add(dataGridView1);

1. double click one cell, use jp hiragaga and press k and then press i
   candidate show like this:
   
2. click other cell, not double click, press k and i directly.
   candidate change like this:
   

I can confirm this issue is fine before windows update

version:
os need windows 2004

Expected behavior:
both two case show same candidate

Minimal repro:
both two case show different candidate

Could MS told us this is new IME startegy in DataGridView or will fix it in the next version?

[TempeBrennan]

Is there any body else meet this issue?
Using DataGridView

[RussKie]

@Olina-Zhang could you please verify?

[Olina-Zhang]

@Olina-Zhang could you please verify?
@RussKie we can repro this issue on 2004 OS, and cannot repro it on 1909 OS. Please see following gif:
2004 gif:

1909 gif:

[Tanya-Solyanik]

@TempeBrennan, since this regression is associated with the new windows release, please report it on the windows support site - https://answers.microsoft.com/en-us/windows/