I've been having the same problem, however, the help you have provided has yielded zip.

In one of the many folders DAZ Studio lists, I've found icons for dynamic clothing (in this case the Dynamic Sheets).  I double click on the icon, I get the usual loading dialog, but then nothing appears.  Also, under Tabs, the dynamic clothing app does not appear.

Everything worked at one time, then suddenly, with no changes to my system (no new software, upgrades, etc.) all things "dynamic" stopped working.

Very frustrating.