RubyMine 2024.1.1 stopped working to show gutter icon to jump view file

Hello.

I was using RubyMine 2023 version so far(without updating). However, after updating to RubyMine 2024.1.1,  Rails `gutter icons` such as jump view file are not shown.

( I updated 2 version this time.

I tried below, though did not help.

* Power Save mode on/off

* Disable all plugins

* Invalidate Caches

* compare .idea files.. ( roughly

I found a interesting case is creating new project by 

> File → New → Application

successfully shows gutter icon. of `jump to view file`

though I don't find out what is difference in code.. and how to apply to existing project.

So how to solve this problem?

any one has the same issue?

Thank you

Possibly similar case:

https://intellij-support.jetbrains.com/hc/en-us/community/posts/4413473951634-Gutter-icons-not-showing-in-Rubymine