When I installed the Handlebars package, there was a problem with the syntax highlighting. As shown below. How can I solve it?

My environment:
SublimeText win-x64 4143 build (latest fourth edition)
Handlebars package version: 2019.04.13.17.11.43 (the latest version)

Then, strangely enough, when I installed the same package in sublimetext 3, everything worked fine. what is going on?

My environment:
SublimeText win-x64 3211 build (latest third version)
Handlebars package version: 2019.04.13.17.11.43 (the latest version)

Conclusion: ST3 and ST4 are not fully compatible, and the same version of the plug-in package will have problems