A new type of expression engine (“Javascript”) has been added in After Effects CC 2019 – CC 2022 versions. This type of expression engine is enabled by default and has a more strict syntax, so some correct expressions from the “Legacy ExtendScript” engine may be partially incompatible with the new strict syntax, so you may encounter expression errors in templates.
All our transitions are compatible with the new “Javascript” engine; however, we cannot exclude the possibility that any template from more than 5500 transitions may have an expression that is partially incompatible. In this case, you can tell us the name of the composition that has error and we will fix it. But you can solve the problem in a couple of clicks yourself by the method described below:
- Go to menu “File” (or click to hamburger button as in the screenshot below) > “Project Settings” > “Expressions” tab
- In the field “Expressions Engine” select “Legacy ExtendScript” value and click OK
