Emulator started, but not booting further \"android\" flashing text.
Started by
Android/Sdk/emulator/emulator @Nexus_5X_API_25 -verbose
I had the same problem while using the Android-SDK emulators. This solution works, assuming you have an Android build environment; in my case, AOSP. In this instance, the emulator which caused the same problem that OP and others have was emulator64-arm, from the SDK. When I tried the AOSP/prebuilts emulator64-arm, it worked just fine. The regular AOSP emulator worked as well, and you can use them with AVDs as well. Hope this helps, good luck.