diff --git a/tests/test-llama-archs.cpp b/tests/test-llama-archs.cpp
index a1ed2a76f879..4336e4e13d4f 100644
--- a/tests/test-llama-archs.cpp
+++ b/tests/test-llama-archs.cpp
@@ -430,7 +430,7 @@ static bool arch_supported(const llm_arch arch) {
 
     // FIXME: these hit scheduler/view-backed-output issues with WebGPU on CI.
 #ifdef GGML_USE_WEBGPU
-    if (arch == LLM_ARCH_DEEPSEEK32 || arch == LLM_ARCH_GLM_DSA) {
+    if (arch == LLM_ARCH_DEEPSEEK32 || arch == LLM_ARCH_GLM_DSA || arch == LLM_ARCH_MINIMAX_M3) {
         return false;
     }
 #endif // GGML_USE_WEBGPU
diff --git a/tools/ui/CMakeLists.txt b/tools/ui/CMakeLists.txt
index 74bca417e372..208b46a5c15a 100644
--- a/tools/ui/CMakeLists.txt
+++ b/tools/ui/CMakeLists.txt
@@ -61,12 +61,30 @@ if(CMAKE_CROSSCOMPILING)
     # phony target to tie it into the dependency graph
     add_custom_target(llama-ui-embed DEPENDS "${LLAMA_UI_EMBED_EXE}")
 else()
+    # exclude llama-ui-embed from sanitizer flags,
+    # it's a build-time-only tool, no need to instrument it
+    # this is to fix TSan "memory layout is incompatible" error on CI
+    get_directory_property(_llama_ui_dir_co COMPILE_OPTIONS)
+    get_directory_property(_llama_ui_dir_ll LINK_LIBRARIES)
+    set(_llama_ui_embed_co ${_llama_ui_dir_co})
+    set(_llama_ui_embed_ll ${_llama_ui_dir_ll})
+    list(FILTER _llama_ui_embed_co EXCLUDE REGEX ".*-fsanitize=.*")
+    list(FILTER _llama_ui_embed_ll EXCLUDE REGEX ".*-fsanitize=.*")
+    set_directory_properties(PROPERTIES
+        COMPILE_OPTIONS "${_llama_ui_embed_co}"
+        LINK_LIBRARIES  "${_llama_ui_embed_ll}")
+
     add_executable(llama-ui-embed embed.cpp)
     target_compile_features(llama-ui-embed PRIVATE cxx_std_17)
     set_target_properties(llama-ui-embed PROPERTIES
         RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
     )
     set(LLAMA_UI_EMBED_EXE "$<TARGET_FILE:llama-ui-embed>")
+
+    # restore so the llama-ui library below keeps sanitizer instrumentation
+    set_directory_properties(PROPERTIES
+        COMPILE_OPTIONS "${_llama_ui_dir_co}"
+        LINK_LIBRARIES  "${_llama_ui_dir_ll}")
 endif()
 
 # Run the provisioning script every build so source changes in tools/ui/ are