Hi Rsmisitel,

I assume the problem is related to the tag's default value. After initialization, the value "VT_EMPTY" is used, which is displayed as 0. However, a comparison to 0 will fail. Therefore, I recommend configuring a start value for the tag related to the ID of the screen you want displayed at startup.

Kind regards
Stefan

Hello Rsmisitel

The systemfunction to chane the Screen by number is set by default with the value 0:

This Screen number is only a default placeholder. Also every Screen has the default Screen number 0 so there will be no defined screen for this. This will lead to this behaviour.

Check every place in your project where you use this systemfuncton and get sure you do not use the 0 as parameter.

use only Screennumbers >0 in your screens and in the screenfunction.

Bye Murof

Edit: I have not seen that Stefan has also written an answer in the meantime..., so two answers are better then none, I guess