https://forums.autodesk.com/t5/flexsim-forum/pull-null-values-from-list/m-p/13907413#M99021 <P>Without seeing the model, the only possible cause that comes to mind is that the information is stored on tokens which gets pushed to the list and enter a sink immediately after getting pulled. Whether copying labels from that token to the puller is successful would depend on which token arrived first. If the puller is waiting and then something is pushed, the puller continues first and can copy the labels. Otherwise the pulled token enters the sink before the puller continues.</P><P>If that is indeed the issue, add a Breathe activity after Push To List to always give the puller enough time to copy the labels.</P> Mon, 17 Nov 2025 07:23:33 GMT FelixMoehlmann 2025-11-17T07:23:33Z https://forums.autodesk.com/t5/flexsim-forum/pull-null-values-from-list/m-p/13896493#M98970 <P>Hello, i have a list that contains all the information for agv's tasks. After some time the pulled values are all nulls. I checked and none of the pushed values are null.</P><P>There are multiple tokens pulling from this list at the same time. Is this a bug or how can i resolve this?</P> Wed, 12 Nov 2025 14:44:24 GMT https://forums.autodesk.com/t5/flexsim-forum/pull-null-values-from-list/m-p/13896493#M98970 giovanni_ceroni2 2025-11-12T14:44:24Z https://forums.autodesk.com/t5/flexsim-forum/pull-null-values-from-list/m-p/13907413#M99021 <P>Without seeing the model, the only possible cause that comes to mind is that the information is stored on tokens which gets pushed to the list and enter a sink immediately after getting pulled. Whether copying labels from that token to the puller is successful would depend on which token arrived first. If the puller is waiting and then something is pushed, the puller continues first and can copy the labels. Otherwise the pulled token enters the sink before the puller continues.</P><P>If that is indeed the issue, add a Breathe activity after Push To List to always give the puller enough time to copy the labels.</P> Mon, 17 Nov 2025 07:23:33 GMT https://forums.autodesk.com/t5/flexsim-forum/pull-null-values-from-list/m-p/13907413#M99021 FelixMoehlmann 2025-11-17T07:23:33Z