The change marker is not displayed when changing source code (Version Control)

Do you mean change markers in editor, of the color file is shown with in the Project tool window? does the file appear with correct status in the Version control tool window once you change it? also, what VCS tool do you use - Git?

I am taking about this change markers. Here is example, I added 2 new lines. IDE do not show me changes. I need to do refresh for Version Control Tab -> Local Changes, and only after I will see this: 

But not when I change my code. 

I do change again and save the changes (Ctrl + S) -> markers are gone and I need to refresh Local changes again

I use GIT

Please can you recreate the issue and provide your idea.log (https://intellij-support.jetbrains.com/hc/en-us/articles/207241085-Locating-IDE-log-files)? Please don't paste it here, upload it to some file server and provide a link

Here is link 

https://drive.google.com/file/d/1Nmkx8j3TZeqtTUQQBqcxXdR8A8Hg03L3/view?usp=sharing

The log shows that the IDE runs out of memory. Did you try giving it more RAM by increasing -Xmx value in Help | Edit custom VM options...?

I did update and reload IDE. But nothing help

-Xms256m
-Xmx1500m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=100
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-Djdk.http.auth.tunneling.disabledSchemes=""
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Dawt.useSystemAAFontSettings=lcd
-Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine

Please can you provide your recent idea.log?

https://drive.google.com/file/d/1wvreeaoFDW4cSEHPgtX0MoDkTM1LC-zQ/view?usp=sharing

Sorry for the delayed reply.

Please check if disabling Atlassian connector plugin makes any difference.

If not, please submit an issue to https://youtrack.jetbrains.com/issues/IDEA with the debug log attached 

To enable debug logs go to Help - Debug Log Settings... and add the following lines there

#git4idea.commands.GitHandler
#com.intellij.openapi.vcs.changes.ChangeListWorker
#com.intellij.openapi.vcs.impl.LineStatusTrackerManager
#com.intellij.openapi.vcs.changes.ChangeListManagerImpl

Then please reproduce the issue, zip logs fodler and attach to the issue in Youtrack.

I experienced the same issue, on Mac

I tried:

• restart with cache invalidation
• removed caches and settings manually, re-installed Idea via Toolbox.

Same result.

Then I found it, after going to all that trouble.

The issue was that the setting Editor -> General -> Highlight Modified Lines In Gutter was turned off. Somehow it got turned off across an upgrade or something like that, because I did not even know the setting existed -- it was always turned on by default.

If you updated your Mac OS and ran into git trouble after that (e.g. invalid active developer path) you'll have to fix that and then restart PyCharm.