@SimGuruModSquad - The latest Tdesc files were throwing an exception in my Tdesc Browser which I needed to resolve whenever the Interaction class was browsed. In Interaction.tdesc there are two items...
Thanks for that info, good to know how and why it can happen. Most people ignore the old_muid lookback feature in the Tdesc browser anyway, so not suprising it never came up until it threw an actual .Net exception. :)