Explanation of Plugin Manager Scan fail Error Message

Hi
Ive just moved to a new hard drive and installed Ardour 8.12 and all my plugins.
Im getting more error messages than on my previous installation, both with the original and brand new installers. I’m now on Linux 6.12.17 on Debian testing.

Vst3s seem to be worst affected and a common scan fail message is

VST3 module-path ‘/usr/lib/vst3/NeuralNote.vst3/Contents/x86_64-linux/NeuralNote.so’
[Info]: Scanning: /usr/lib/vst3/NeuralNote.vst3
[ERROR]: Could not load VST3 plugin ‘/usr/lib/vst3/NeuralNote.vst3/Contents/x86_64-linux/NeuralNote.so’: /usr/lib/vst3/NeuralNote.vst3/Contents/x86_64-linux/NeuralNote.so: cannot enable executable stack as shared object requires: Invalid argument
Cannot load VST3 module: ‘/usr/lib/vst3/NeuralNote.vst3/Contents/x86_64-linux/NeuralNote.so’
Scan Failed.

Neural Note standalone is working fine
I have tried installing the vst3 in both ~/.vst3 and /usr/lib/vst3 folders.
Please can you explain the error message.

Here is my permissions for ~/.vst3 (checked from another folder in my home directory):
ls -la …/.vst3/
total 40
drwxr-xr-x 10 mel mel 4096 Mar 17 21:48 .
drwx------ 21 mel mel 4096 Mar 17 20:17 …
drwxr-xr-x 3 mel mel 4096 Jan 25 21:37 ‘Airwindows Consolidated.vst3’
drwxr-xr-x 3 mel mel 4096 Jan 25 21:48 DecentSampler.vst3
drwxr-xr-x 3 mel mel 4096 Apr 23 2023 DragonflyEarlyReflections.vst3
drwxr-xr-x 3 mel mel 4096 Apr 23 2023 DragonflyHallReverb.vst3
drwxr-xr-x 3 mel mel 4096 Apr 23 2023 DragonflyRoomReverb.vst3
drwxr-xr-x 3 mel mel 4096 Jan 25 22:02 Meter.vst3
drwxrwxr-x 3 mel mel 4096 Jan 11 11:59 NeuralNote.vst3
drwxr-xr-x 3 mel mel 4096 Feb 9 16:13 ‘ZL Equalizer.vst3’

of these Decent Sampler and ZL Equalizer work, NeuralNote and all of the Dragaonfly reverbs failed when they worked previously, also on Debian testing.

Do you have any ideas about this?
Many thanks