Can not delete some text or description in Symbol Editor

Steps to reproduce

1. Copy a symbol to a new library or import a symbol from ultra librarian. In My example, I tested LT303045EDD from librarian and LT3045xMSE in default library.
2. Try to delete blue text / select all and delete, as displayed in video.

屏幕录制_2024-04-16_215939

KiCad Version

Application: KiCad Symbol Editor x64 on x64

Version: 8.0.2-rc1-1-g048448296d, release build

Libraries:
	wxWidgets 3.2.4
	FreeType 2.12.1
	HarfBuzz 8.3.0
	FontConfig 2.14.2
	libcurl/8.5.0-DEV Schannel zlib/1.3

Platform: Windows 11 (build 22631), 64-bit edition, 64 bit, Little endian, wxMSW

Build Info:
	Date: Apr 16 2024 05:22:25
	wxWidgets: 3.2.4 (wchar_t,wx containers)
	Boost: 1.83.0
	OCC: 7.7.1
	Curl: 8.5.0-DEV
	ngspice: 42
	Compiler: Visual C++ 1936 without C++ ABI

Build settings: