When multiple blocks are produced, it would be good to identify where these blocks exist, so they can be fix via manual tie points.
Yes, that is correct. The red, green and yellow are three layers. If you are having issue on other area, can you send me the screenshot showing the issues? Usually, if you see the issue on those area it might be due to multiflight mission, drastically change in the lightening condition and so on. We recommend adding mtps in that area.