[Altium importer] Misplaced texts, Overlay artwork replaced with Letters

Description

There are glitches in imported Altium board:

misplaced texts in boxes
graphical symbols replaced with Letters

Steps to reproduce

Open attached project file
Verify against Gerber output

KiCad Version

Application: KiCad PCB Editor x64 on x64

Version: 8.0.5-rc1-4-g7a05d58b3e, release build

Libraries:
	wxWidgets 3.2.5
	FreeType 2.13.2
	HarfBuzz 9.0.0
	FontConfig 2.14.2
	libcurl/8.8.0-DEV Schannel zlib/1.3.1

Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW
OpenGL: Intel, Intel(R) HD Graphics 4600, 4.3.0 - Build 20.19.15.5126

Build Info:
	Date: Sep  3 2024 05:22:22
	wxWidgets: 3.2.5 (wchar_t,wx containers)
	Boost: 1.85.0
	OCC: 7.8.1
	Curl: 8.8.0-DEV
	ngspice: 42
	Compiler: Visual C++ 1939 without C++ ABI

Build settings:

Edited Sep 26, 2024 by Michal