diff --git a/test/regression/cases/file_to_blackhole_1000ms_latency/experiment.yaml b/test/regression/cases/file_to_blackhole_1000ms_latency/experiment.yaml
index 64fe41015db6f..215dcfa86cc48 100644
--- a/test/regression/cases/file_to_blackhole_1000ms_latency/experiment.yaml
+++ b/test/regression/cases/file_to_blackhole_1000ms_latency/experiment.yaml
@@ -31,9 +31,3 @@ checks:
       series: total_rss_bytes
       # The machine has 12GiB free.
       upper_bound: 1.2GiB
-
-  - name: lost_bytes
-    description: "Allowable bytes not polled by log Agent"
-    bounds:
-      series: lost_bytes
-      upper_bound: 0KB
diff --git a/test/regression/cases/file_to_blackhole_300ms_latency/experiment.yaml b/test/regression/cases/file_to_blackhole_300ms_latency/experiment.yaml
index 64fe41015db6f..215dcfa86cc48 100644
--- a/test/regression/cases/file_to_blackhole_300ms_latency/experiment.yaml
+++ b/test/regression/cases/file_to_blackhole_300ms_latency/experiment.yaml
@@ -31,9 +31,3 @@ checks:
       series: total_rss_bytes
       # The machine has 12GiB free.
       upper_bound: 1.2GiB
-
-  - name: lost_bytes
-    description: "Allowable bytes not polled by log Agent"
-    bounds:
-      series: lost_bytes
-      upper_bound: 0KB
diff --git a/test/regression/cases/file_to_blackhole_500ms_latency/experiment.yaml b/test/regression/cases/file_to_blackhole_500ms_latency/experiment.yaml
index 64fe41015db6f..215dcfa86cc48 100644
--- a/test/regression/cases/file_to_blackhole_500ms_latency/experiment.yaml
+++ b/test/regression/cases/file_to_blackhole_500ms_latency/experiment.yaml
@@ -31,9 +31,3 @@ checks:
       series: total_rss_bytes
       # The machine has 12GiB free.
       upper_bound: 1.2GiB
-
-  - name: lost_bytes
-    description: "Allowable bytes not polled by log Agent"
-    bounds:
-      series: lost_bytes
-      upper_bound: 0KB