On Android: getScreenshotAs returns com.google.common.collect.Maps$TransformedEntriesMap instead of byte array

Description

On Android, when I'm attempting to call getScreenshotAs(OutputType.BYTES), under certain situations, it fires:

java.lang.RuntimeException: Unexpected result for screenshot command: com.google.common.collect.Maps$TransformedEntriesMap instance
        at org.openqa.selenium.remote.RemoteWebDriver.getScreenshotAs(RemoteWebDriver.java:357)

This is running against BrowserStack on a Samsung Galaxy S21 Ultra. It appears to be related to switching contexts to Native before.

Environment

• Java client build version or git revision if you use some snapshot: 8.0.0-beta
• Appium server version or git revision if you use some snapshot: BrowserStack
• Desktop OS/version used to run Appium if necessary: BrowserStack
• Node.js version (unless using Appium.app|exe) or Appium CLI or Appium.app|exe: N/A
• Mobile platform/version under test: Galaxy S21 Ultra on BrowserStack
• Real device or emulator/simulator: Real

Code To Reproduce Issue [ Good To Have ]

driver.getScreenshotAs(OutputType.BYTES)

Exception Stacktraces

See above

Link To Appium Logs

I would be happy to send a link to the BrowserStack Appium logs directly, but it appears to include some of the credential information, so I wouldn't want to post it here. I've seen other references to this problem in other tickets though, so I'm assuming this isn't a new problem.

Start at org.openqa.selenium.remote.RemoteWebDriver.getScreenshotAs, especially the handling associated with the reported failure at RemoteWebDriver.java:357. Reproduce driver.getScreenshotAs(OutputType.BYTES) after switching to Native context on the reported Android setup, then verify that the screenshot command returns a byte array rather than Maps$TransformedEntriesMap.