It seems depending on logcat output for signaling introduces a persistent flakiness to the tests. Mark them @Ignore until a better solution is available, which disables the tests on presubmit. The test is still part of mts-core which shouldn't be ignoring these test cases though. Bug: 218368479 Test: presubmit Change-Id: I154e7fecab044d1f6406b98be8e3873a6ff03c5e