Can no longer change the values of local variables

Thank you @kazurayam for the update,
but for me, the issue does not seem to be solved yet.

I have just installed Katalon Studio Version: 6.1.2 Build: 2 and the behavior is exactly the same, the log records the same error I have provided above.

at org.eclipse.equinox.launcher.Main.run(Main.java:1519)
Caused by: java.lang.NullPointerException
at com.kms.katalon.composer.testcase.parts.TestCaseVariablePart.setDirty(TestCaseVariablePart.java:454)

It may have something to do with the fact that I have also imported the settings from the previous Katalon version project…

However, for the moment, the workaround @Russ_Thomas has provided seems to help a lot.

Thank you,
Cornel Neacsu