I'm not aware of any limits although it is a good to try and keep the number of scripts to a minimum to make it easier to manage.
Maximo doesn't guarantee that scripts will be triggered in any particular order so the scripts may be running but then causing problems for each other.
Have you switched the autoscript logger to debug to see when the scripts are being triggered?
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Mark Robbins
Support Lead/Technical Design Authority / IBM Champion 2017 & 2018 & 2019 & 2020 & 2021
Vetasi Limited
https://www.linkedin.com/pulse/maximo-support-advice-from-non-ibm-engineer-article-mark-robbins/------------------------------