Attached config and demo project. Steps:
1. close and reopen SE as many times: the project is reopened with all 3 buffers open
2. change Tools > Options > Application Options > Auto Restore -> Auto restore selective display = Off, then OK
3. close and reopen SE: each time a buffer is not anymore opened. From 3rd reopening no more buffers...
Hope it can be reproduced...
SlickEdit Pro 2023 (v28.0.2.0 64-bit Qt5)
Build Date: April 3, 2024
Emulation: CUA
OS: Windows 10 x64
OS Version: 10.00.0
Memory: 18% Load, 5984MB/32464MB Physical, 8020MB/32464MB Page File, 4654MB/134217727MB Virtual
Shell Information: C:\Windows\system32\cmd.exe /q
Screen Size: 1920 x 1200 (0 0 1920 1200), 1920 x 1200 (-1920 0 1920 1200)
Project Type: Gnuc
Language: .c (C/C++)
Encoding: ACP (1252)