Hi Rony,
I have experienced this once myself. I found that it was caused by an earlier beta version of the KarmaFX Synth plugin. When using the import plugin procedure in the wizard, then this plugin would somehow clear all Podium menus. Saving the project and restarting Podium may appear to work, since this will not load the plugin. If I then later on loaded the plugin by placing it on a track, the Podium menus would become blank again.
Frits