Not sure why a right column in a table missed being recognized, and another table missed 2 columns

[RickVincent]

In page 212 of attached PDF, there are 3 tables (#1, #2, #3). With below code, the table #2 and #3 missed some columns (#2 table missed 4th/right-most column, #3 missed 1st and 3rd with middle column only be recognized.

WHHX.2019.Report.pdf

Per im.debug_tablefinder() method, no any invisible objects founded in the page to block the table recognition.
Applied couple table_settings, no luck.

No sure the root cause which blocks the recognition.

import pdfplumber

def is_thin_rectangle_exists(obj: dict) -> bool:
    ''' Advised by jsvine - https://github.com/jsvine/pdfplumber/discussions/1242
    '''

    if obj["object_type"] == "rect":
        return obj["height"] < 5 or obj["width"] < 4
    return True

def for_table_count_issue_whhx_2019():
    REPORT_STRING_ISSUE_WHHX_2019_P212 = r'D:\Downloads\WHHX.2019.Report.pdf'
    pdf = pdfplumber.open(REPORT_STRING_ISSUE_WHHX_2019_P212)
    page = pdf.pages[211]
    filtered_page = page.filter(is_thin_rectangle_exists)

    im = filtered_page.to_image()

    im.debug_tablefinder()
    im.show()
    im.save('WHHX.2019.Page.212.png')

if __name__ == "__main__":
    for_table_count_issue_whhx_2019()

Here attached the image debugging snapshot.

Any advises from experts? Appreciate any comment or similiar issue/solution.