iOS: Appium Server fail get app status after it running in work ground

Issues/Bugs
1

Appium issue
Fail get app status after it running in work ground.
Steps:
1 .Run Inspector by start the appA, this app will call log on window (it’s from another appB)
2. Now appA is run in work ground, but Appium server fail get appA status( it is in running status), it will start appA for 3 times and then prompt a message like below:
Could Not Launch Appium Inspector.

2

Please provide more details about your system and logs if you want people to help. thx.