Script issue - Explainer video toolkit - layers don't load on frame 1

Hi after effect community,

Having some issue with a script, I am trying different approaches to see if I can fix it.

Problem: when I use the script of "explainer video toolkit" and load one of it's element or animation, the layers places themself later in the timeline. This mismatch is reported in every comp in a cascaded way with different mismatch sizes. Here 129 , 52 , 66 frames depending the composition. But these value repeat.

WHAT I TRIED
- The current time indicator's position doesn't influence this situation

- Comp Settings changes lenght or framerate
- Earlier version of After effect ( V 18.0) 
- place all layers manually ( takes too much time and still have some issues on the final result, partial animation problems)

WHAT I HAVEN'T TRIED YET

- uninstall all my plugins
( haven't found how to disable them, and the freshly installed old version of AE finds the plugins synced through the adobe cloud app. I was looking for the folder in adobe - common, but they don't seem to be there)

- script / tool to place all layers & comps, inside of comps at frame 1 ( look for it but didn't find anything)

Thank you for your help !