# Archilab vs. Clockwork Bug **URL:** \ **Category:** Packages\ **Tags:** bug\ **Created:** [January 22, 2021, 10:28am UTC](https://forum.dynamobim.com/t/archilab-vs-clockwork-bug/59614 "2021-01-22T10:28:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![leonard.moelders](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/leonard.moelders/32/108216_2.png) [@leonard.moelders](https://forum.dynamobim.com/u/leonard.moelders)\ **Post date:** [January 22, 2021, 10:28am UTC](https://forum.dynamobim.com/t/archilab-vs-clockwork-bug/59614/1 "2021-01-22T10:28:45Z")
Hey there, the Clockwork-Node “List.ReplaceItemAtIndex+” won’t work anymore after installing the Archilab-Package. This Bug can be repeated, as when its uninstalled the node works and when I install Archilab again it doesn’t work again. Does anybody else have this bug? I use Revit 2021, Clockwork 2.3.0 and Archilab 2021.25.21 ---
**Author:** ![Mark.Ackerley](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mark.ackerley/32/79310_2.png) [@Mark.Ackerley](https://forum.dynamobim.com/u/Mark.Ackerley)\ **Post date:** [January 22, 2021, 3:32pm UTC](https://forum.dynamobim.com/t/archilab-vs-clockwork-bug/59614/2 "2021-01-22T15:32:13Z")
Hey, It is fine on mine… ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/8/7/87eba1b8989f451afc4fa42df47d59441d20b3fe.png) Here’s my setup… ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/8/a/8a02b881a57156d35b15a713a89776d8dd9070aa.png) ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/4/4/449965237a5b1771506d22dd330325a2ce19c1bb.png) ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/d/7/d7dae63035066eb2995dcb4ccc36ab208b9e1f29.png) Maybe double click into the Clockwork node and see if there is anything which is unhappy? You can even copy the whole lot into your graph to have a look at it… Hope that helps, Mark