Obviously, something has changed between my old and new build environments, but I have no idea what that might be. Anyone have any insight or suggestions?
After reading all carefully Shortly:
one of application plugin you used before not used later,
or one of application plugin updated and now supports x64 natively..........
on both cases, some dependencies changed provided by A application plugin,
which effects B application (x86 on most frequent, still x64 too ) not work anymore
To avoid such things,
Develop your application and related plugin to work with a Basic build:http://theoven.org/index.php?topic=1876.0
on your case,
after basic build ("Basic Project"),
+ run PeNetwork plugin (green play button)
+ run Network plugin (green play button)
+ run your personal application plugin (green play button)
finally run "Basic Project" plugin again (green play button)
and test, faster on a virtual environment
(at least after you feel virtual tests ok, than continue real environment tests to gain time)
Than plugin and application will mostly work without problem today and tomorrow,
and if there happens a failure it will be quite easier to figure out and fix on such plugin. (very RARE)
project plugins and most used plugins designed that way,
so we do not have such failures on project development and plugins,
as a result we can focus on other things on our very very limited free time.
Overall good luck