[Closed] rolloutfloater "empty" after exporting

Hi all … once again one of those problems i have tried to figure out on my own
for about one month now…but all i try doesn’t change a thing…

I’m writing an exporter for Indigo and so far all the features are included…

the only thing nagging me is the fact that the rolloutfloater kind of disappears after
exporting once… when i press the script button again it looks like below…
ihave to rerun the script to bring it back up again…
sure this is just a stupid fault by me …

so here is what it looks like before and after exporting…

before : after :

here is the part of the code managing the rolloutfloater…

utility spread "Indigo Exporter" (
   
   	button bt_export "Open Exporter"
   
   	on bt_export pressed do (
   
   			if ( indwin != undefined ) do (
   			-- unregister and close any existing floaters
   			try (
   				cui.FloatDialogBar indwin
   				cui.UnRegisterDialogBar indwin
   			) catch ()
   			closerolloutfloater indwin
   			)	
   
   		if (server == undefined) then (
   		server = "undefined"
   		)
   		
   		if (cameras[1] != undefined) then (
   		fn_getcamarray()
   		c = getNodeByName cam_array[1]
   		camname = c.name 
   		fn_camera
   		
   		c_lens = 0.5*(GetRendApertureWidth()/tan(c.fov * 0.5))
   		
   		indwin = newRolloutFloater "Max2Indigo v0.4" 320 600 100 100
   
   		addRollout indsettings indwin rolledUp:true
   		addRollout indtonemap indwin rolledUp:true
   		addRollout indenvironment indwin rolledUp:true
   		addRollout indcamera indwin rolledUp:true
   		addRollout indrender indwin rolledUp:false
   		addRollout indabout indwin rolledUp:false	 
   		) else (
   		messagebox "No Camera in scene"
   		)
   		--make dockable bar
 		--cui.RegisterDialogBar indwin maxSize:[216,-1] minSize:[216,-1] style:#(#cui_dock_vert, #cui_floatable, #cui_handles)
   		--cui.DockDialogBar indwin #cui_dock_left
   	)
   )
   

i also use the enable/disablesceneredraw() command to speed up exporting…
before it wasn’t really a problem … but now it kind of sticks even without enable/disablesceneredraw()

Help would be greatly apprechiated…

thanks in advance

u3dreal