Weird KiCad warning

Had this weird and quite cryptic warning a few times in PCB, have no clue where it points to…
I can’t pinpoint when it appears, seemingly random and my design works fine. Must admit it’s a design that went through quite a few nightlies but was finally imported in V8.
It also happens when opening the PCB.
What am I missing?

Application: KiCad arm64 on arm64

Version: 8.0.0-rc1-4-g5bc78f7d9f, release build

wxWidgets 3.2.4
FreeType 2.13.2
HarfBuzz 8.2.0
FontConfig 2.14.2
libcurl/8.1.2 (SecureTransport) LibreSSL/3.3.6 zlib/1.2.11 nghttp2/1.51.0

Platform: macOS Ventura Version 13.6.1 (Build 22G313), 64 bit, Little endian, wxMac

Build Info:
Date: Jan 14 2024 08:06:58
wxWidgets: 3.2.4 (wchar_t,wx containers)
Boost: 1.82.0
OCC: 7.7.2
Curl: 7.87.0
ngspice: 42
Compiler: Clang 14.0.3 with C++ ABI 1002

Build settings:

You should definitely upgrade your kicad version as you are still using the earliest 8.0 pre release

Did the upgrade but it is still there. It is only when I select a footprint and select “Properties” (e) . Have no clue but I need to click it away if I want to continue. It is always there and not related to a particular project.