Python 为什么tap工具不能与HoloViews DynamicMap一起使用？

使用HoloViews/Bokeh渲染器（HoloViews=1.11.2/Bokeh 1.0.4，通过Windows上的当前anaconda），我想创建一个由散点图和RGB图像组成的布局。散点图显示电影中明暗对比度的值。RGB图像显示了来自电影的屏幕截图。目标是能够单击散点图中的一个点，并加载电影中该时间戳的图像

只要散点图不超过与tap工具和selection1D流关联的

hv.Points

元素，一切正常

%%opts Points [width=1108, size_index=2, tools=['hover', 'tap'], toolbar='left'] (alpha=0.2)
%%opts RGB [toolbar='left']

scatter = hv.Points(il_colful, kdims=['frame', 'bin'], vdims=['pixels', 'time'])

tap_point = streams.Selection1D(source=scatter)

def frmimg(index):
    if index:
        frame = il_colful.iloc[index[0]]['frame']
        url = './il_divo/frames/576p30/il_divo_' + '{0:05}'.format(frame) + '.png'
    else:
        url = './il_divo/frames/576p30/il_divo_00100.png'
    return hv.RGB.load_image(url).options(height=480, width=1108, xaxis=None, yaxis=None)

(hv.DynamicMap(frmimg,
     streams=[tap_point])
     + scatter).cols(1)

但是，当我将散点图转换为DynamicMap时（因为我想为一些散点图参数提供交互式修改），我不能再在散点图上使用tap工具，散点图上没有任何十字线符号，我无法进行任何选择）

是否无法在DynamicMap中的DynamicMaps/层上使用tap工具，或者我是否遗漏了什么

points = hv.Points(il_colful1, kdims=['frame', 'bin'])
selected = streams.Selection1D(source=points)

def scatter(div=5000, thrsh=0, alpha=0.1):
    global points
    il_colful1['scaler'] = (il_colful1['pixels'] / div).round(0).astype(int)
    il_colful_lim1 = il_colful1[il_colful1['pixels'] > thrsh]
    points = hv.Points(il_colful_lim1, kdims=['frame', 'bin'], vdims=['pixels', 'time', 'scaler'], label='Il Divo').opts(tools=['tap'], width=1000, color='blue', size_index='scaler', fill_alpha=alpha, line_alpha=alpha)
    return points

def img(index):
    if index:
        frame = il_colful1.iloc[index[0]]['frame']
        url = './il_divo/frames/576p30/il_divo_' + '{0:05}'.format(frame) + '.png'
    else:
        url = './il_divo/frames/576p30/il_divo_00100.png'
    return hv.RGB.load_image(url).options(height=433, width=1000, xaxis=None, yaxis=None)

il_divo_sct = hv.DynamicMap(scatter, kdims=['div', 'thrsh', 'alpha']).redim.range(div=(500, 15000), thrsh=(0, 50000), alpha=(0.01, 1.0)).opts(tools=['tap'])
screenshot = hv.DynamicMap(img, streams=[selected])

(screenshot + il_divo_sct).cols(1)