diff --git a/tools/chatgui/build.sh b/tools/chatgui/build.sh
index dfc5765f..0b055915 100755
--- a/tools/chatgui/build.sh
+++ b/tools/chatgui/build.sh
@@ -44,6 +44,12 @@ test ${PIPESTATUS[0]} -eq 0 || { log "Build FAILED"; exit 1; }
 
 log ""
 log "[3/4] Deploying runtime DLLs..."
+RLOTTIE_DLL="$SRC_DIR/rlottie_build/librlottie.dll"
+[ -f "$RLOTTIE_DLL" ] || { log "  ERROR: librlottie.dll not found: $RLOTTIE_DLL"; exit 1; }
+cp "$RLOTTIE_DLL" "$BUILD_DIR/librlottie.dll" || {
+    log "  ERROR: cannot copy $RLOTTIE_DLL -> $BUILD_DIR/librlottie.dll"; exit 1;
+}
+log "  OK: librlottie.dll (from $RLOTTIE_DLL; copied to $BUILD_DIR/librlottie.dll)"
 FFMPEG_BIN="$SRC_DIR/ffmpeg/ffmpeg_build/install/bin"
 MAIN_DLLS=(
     "Qt[56]Core.dll" "Qt[56]Gui.dll" "Qt[56]Network.dll" "Qt[56]Widgets.dll" "platforms/qwindows.dll"
@@ -61,7 +67,7 @@ for d in "${MAIN_DLLS[@]}"; do
     fi
 done
 if [ "$DLLS_PRESENT" -eq 1 ]; then
-    log "  SKIP: main runtime DLLs already present; copying and recursive dependency scan skipped"
+    log "  SKIP: main runtime DLLs already present; recursive dependency scan skipped"
 else
     WINDEPLOYQT="/ucrt64/bin/windeployqt"
     if [ -x "$WINDEPLOYQT" ]; then
@@ -166,8 +172,6 @@ else
     for d in /ucrt64/share/qt5/plugins /ucrt64/lib/qt5/plugins; do
         cp "$d/platforms/qwindows.dll" "$BUILD_DIR/platforms/" 2>/dev/null && break
     done
-    cp "$SRC_DIR/rlottie_build/librlottie.dll" "$BUILD_DIR/" 2>/dev/null && log "  OK: librlottie.dll" || log "  WARN: librlottie.dll not found"
-
     # Проверяем тот же основной комплект после копирования.
     log "  Verifying main runtime DLLs..."
     MISSING=0