effet tracé dynamique manquant et beaucoup d'autres...

Could you please share a few more details so we can better assist you?

• What version of Premiere Pro are you using?
• Which specific effects are missing?
• Could you share a screenshot of your Effects panel?

If you're looking for the Write-On effect or other effects that were previously located in the Obsolete folder, please note that many of these have been retired in recent versions of Premiere Pro.

https://helpx.adobe.com/au/premiere-pro/kb/obsolete-effects-transitions-presets-removed.html