added some debug lines

app.py

@@ -527,7 +527,8 @@ def update_vis(rate, show_bkg, cmap, video_preview, query_frame, video_fps, trac
     print('rate', rate)
     print('cmap', cmap)
     print('video_preview', video_preview.shape)
-    T, H, W,_ = video_preview.shape
+    print('tracks', tracks.shape)
+    T, H, W, _ = video_preview.shape
     tracks_ = tracks.reshape(H,W,T,2)[::rate,::rate].reshape(-1,T,2)
     visibs_ = visibs.reshape(H,W,T)[::rate,::rate].reshape(-1,T)
     return paint_video(video_preview, query_frame, video_fps, tracks_, visibs_, rate=rate, show_bkg=show_bkg, cmap=cmap)
@@ -794,6 +795,8 @@ def track(
     # visibs = (visibs * confs) > 0.1 # N,T
     visibs = (confs) > 0.1 # N,T
     # visibs = (confs) > 0.1 # N,T
+
+    print('tracks', tracks.shape)
     
 
     # sc = (np.array([video_preview.shape[2], video_preview.shape[1]]) / np.array([VIDEO_INPUT_RESO[1], VIDEO_INPUT_RESO[0]])).reshape(1,1,2)