Why won't TX16Wx plugin load?

Getting Stuff Done How do I .... ?
#1

I was successfully using a very old version of the TX16Wx plugin, but when its GUI started displaying gibberish, I decided to update it. After uninstalling and deleting all traces of TX16Wx, I installed the latest version. In Ardour, after removing stale plugins and re-scanning for plugins, the Plugin Manager and Plugin Selector each showed three TX16Wx plugins, with no indications of any errors.

I tried adding each of them to a MIDI track, and they all failed with the exact same error (except for the times), reporting this in the Log:

[ERROR]: VST: cannot load module from "V:\VST_plugins\VST2\TX16Wx.dll

I noticed that the VST3 plugins were trying to load from a VST2 dll, so in the Plugin Manager I checked the “Ig” (ignore) flag for the VST2 plugin. This removed the VST2 plugin from the Plugin Selector. I tried again to load the two VST3 plugins, but they failed with these dialogs:

The plugin "TX16Wx could not be loaded | See the Log window for more details (maybe)

The plugin "TX16Wx (legacy id) could not be loaded | See the Log window for more details (maybe)

This time there was no additional info in the Log.

I also looked at the TX16Wx plugins using OwlPlug, which found them without reporting any errors.

I’ve seen in this forum that other people have been able to use TX16Wx successfully.
Does anyone have any idea why the latest version isn’t working for me?

I’m running Ardour version 8.12.0 (rev 8.12) Intel 64-bit under Windows 10.0.19045.4291.
The TX16Wx version is 3.7.0n (x64).

Thank you!

– Ed

Some additional info:

Here is some of the detail info for the VST2 plugin from the Plugin Manager:

Callback opcode = 16 (ignored)
Callback opcode = 17 (ignored)
Found Plugin: '61XT' TX16Wx
VST2Cache
	binary="V:\VST_plugins\VST2\TX16Wx.dll" 
	arch="x86_64"
	id="1415065910"
	name="TX16Wx"		creator="CWITEC"		category="Instrument"
	version="" 
	n_inputs="2"			n_outputs="24"
	n_midi_inputs="1"		n_midi_outputs="1"
	is_instrument="1"		can_process_replace="1"		has_editor="1"

Here is some of the detail info for the two VST3 plugins from the Plugin Manager (they both have exactly the same info):

Class: 0 'TX16Wx' 'Audio Module Class'
Class: 1 'TX16Wx (legacy id)' 'Audio Module Class'
Found Plugin: TX16Wx
Found Plugin: TX16Wx (legacy id)
VST3Cache  
	bundle="V:\VST_plugins\VST3\TX16Wx.vst3" 
	module="V:\VST_plugins\VST3\TX16Wx.vst3\Contents\x86_64-win\TX16Wx.vst3"
	VST3Info
		uid="C4D8BD1A074B1188285DC2AA09B619A4" 
		name="TX16Wx"		vendor="CWITEC"		category="Instrument|Synth" 
		version="3.7.0n 7587.1313"		sdk-version="VST 3.7.14"
		n_inputs="0"			n_outputs="24" 
		n_aux_inputs="2"		n_aux_outputs="0" 
		n_midi_inputs="1"		n_midi_outputs="1"
	VST3Info
		(same info as previous VST3Info, except...)
		uid="C4D8BD1A1188074BAAC25D28A419B609"