Katalon Studio fails to start application in Windows object spy - selenium

Question

I use Katalon Studio 7.0.4 and Windows Application Driver v1.2 RC and allowed port 4723 on firewall. I used PuTTY for testing. Connection is successful, application is shown in spy tool, but got errors when try to use some methods(e.g.:click, getText). I see following errors in logs.
On server side:
==========================================
GET /session/3A8AB5F8-E6B3-4FB1-9C14-E48B8F4F5C4D/screenshot HTTP/1.1
Accept-Encoding: gzip
Cache-Control: no-cache
Connection: Keep-Alive
Host: myip:4723
User-Agent: selenium/3.141.59 (java windows)
HTTP/1.1 500 Internal Error
Content-Length: 133
Content-Type: application/json
{"status":13,"value":{"error":"unknown error","message":"An unknown error occurred in the remote end while processing the command."}}
==========================================
GET /session/3A8AB5F8-E6B3-4FB1-9C14-E48B8F4F5C4D/window_handle HTTP/1.1
Accept-Encoding: gzip
Cache-Control: no-cache
Connection: Keep-Alive
Host: myip:4723
User-Agent: selenium/3.141.59 (java windows)
HTTP/1.1 200 OK
Content-Length: 84
Content-Type: application/json
{"sessionId":"3A8AB5F8-E6B3-4FB1-9C14-E48B8F4F5C4D","status":0,"value":"0x000A09F4"}
On client side:
org.openqa.selenium.WebDriverException: An unknown error occurred in
the remote end while processing the command. (WARNING: The server did
not provide any stacktrace information) Command duration or timeout: 0
milliseconds Build info: version: ‘3.141.59’, revision: ‘e82be7d358’,
time: ‘2018-11-14T08:25:53’ System info: host: ‘LAPTOP’, ip:
‘192.168.56.1’, os.name: ‘Windows 10’, os.arch: ‘amd64’, os.version:
‘10.0’, java.version: ‘1.8.0_181’ Driver info:
io.appium.java_client.windows.WindowsDriver Capabilities {app:
C:\Users\user101\Downloads…, javascriptEnabled: true, platform:
WINDOWS, platformName: WINDOWS} Session ID:
3A8AB5F8-E6B3-4FB1-9C14-E48B8F4F5C4D at
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at
org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
at
org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
at
org.openqa.selenium.remote.http.JsonHttpResponseCodec.reconstructValue(JsonHttpResponseCodec.java:40)
at
org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:80)
at
org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:44)
at
org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:158)
at
io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:239)
at
org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
at
io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:46)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1) at
io.appium.java_client.windows.WindowsDriver.execute(WindowsDriver.java:1)
at
org.openqa.selenium.remote.RemoteWebDriver.getScreenshotAs(RemoteWebDriver.java:295)
at
com.kms.katalon.composer.windows.spy.WindowsInspectorController.captureScreenshot(WindowsInspectorController.java:82)
at
com.kms.katalon.composer.windows.dialog.WindowsRecorderDialog$3.captureImage(WindowsRecorderDialog.java:653)
at
com.kms.katalon.composer.windows.dialog.WindowsRecorderDialog$3.run(WindowsRecorderDialog.java:620)
at
org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)
In Katalon Studio: