There was a patch 3 hours ago, try the cleaner and if it still error's it probably needs updated.
steamdb.info/patchnotes/7404209/
Please delete the trainer, custom keys, debug folder where the trainer resides and all files in
C:\Users\USERNAMEHERE\AppData\Local\Temp
C:\Users\USERNAMEHERE\Cheathappens\Work
C:\Users\USERNAMEHERE\AppData\Roaming\Cheat Happens\0x90
C:\ProgramData\CheatHappens
Learn how to make your own Trainer Cleaner for the above paths here.
Reboot PC to clear excess memory, get a fresh copy of latest trainer and extract it. Run trainer as admin, read the instructions and try again. At times, a new game may be needed to resolve failed options if the data in your save file was altered. Use on a new game and test the option. If it now works, quit to main menu and load your save and try it again. May also need to run the game without the trainer first and play a bit so the save file gets updated to use possible new values. This typically will resolve the issue.
This cleaner is also part of the new Cheat Happens Trainer Manager 2.0, it is found in the settings and has an easy to use one button click feature.
Please use the update notification system to report a game patch, update or to report that the trainer may not be working with the latest version of the game. If 3 or more reports have been filed, consider BOOSTING the priority of this title for a faster turnaround on the updated trainer.
I've already filed a trainer update request, and I'm not trying to rush anything (seriously, take all the time you need), but just wanted to let you know that I did 'clean' the trainer per the instructions and started a new game. The trainer still errors whenever I attempt to active it (F1).
20:45:29: The Walking Dead: Saints & Sinners, Patch 11/24/20 (STEAM)
20:48:40: Successfully attached to TWD-Win64-Shipping
20:48:41: player, Script error in line 6: Cannot find aob for 'originalcode_7269'
Thanks for everything you do.