Markdown table does not render?

I tried to include a markdown table in the description of this dataset: https://www.openml.org/search?type=data&sort=runs&id=45081&status=active

But it does not seem to render:

Both the Github markdown renderer and my local (PyCharm) renderer seem to display the table fine.
Code and example below.

List with a description for each feature:

|Field|Description|
|---|---|
|tree_id|Unique tree identifier code|
|division|Major phylogenetic division (Angiosperm or Gymnosperm)|
|family|Family name|
|genus|Genus name|
|species|Species binomial name|
|latitude|Latitude (in decimal degrees)|
|longitude|Longitude (in decimal degrees)|
|stem_diameter_cm|Stem diameter (in cm). For multi-stemmed trees values for individual stems (Di) were pooled into a single value calculated as: sqrt(sum(Di^2)). Log-scaled (base 10).|
|height_m|Tree height (in m). Log-scaled (base 10).|
|crown_radius_m|Crown radius (in m)|
|height_outlier|Identifier for trees with height values flagged as outliers (Y = outlier; N = non-outlier)|
|crown_radius_outlier|Identifier for trees with crown radius values flagged as outliers (Y = outlier; N = non-outlier)|
|reference_id|Reference code corresponding to the data source from which a record was obtained (see 'Reference_look_up_table.csv' for details on data sources).|
|realm|"Biogeographic realm. Follows the classification of Olson et al. (2001) BioScience, 51, 933-938"|
|biome|"Biome type. Follows the classification of Olson et al. (2001) BioScience, 51, 933-938"|
|mean_annual_rainfall|Mean annual rainfall (in mm/yr). Values were obtained from the WorldClim2 database based on the geographic coordinates of the tree.|
|rainfall_seasonality|Rainfall seasonality (coefficent of variation). Values were obtained from the WorldClim2 database based on the geographic coordinates of the tree.|
|aridity_index|Aridity index (calculated as mean annual precipitation / potential evapotranspiration). Values were obtained from the Global Aridity Index and Potential Evapotranspiration Climate Database (v2) based on the geographic coordinates of the tree. Log-scaled (base 10).|
|mean_annual_temperature|Mean annual temperature (in degree C). Values were obtained from the WorldClim2 database based on the geographic coordinates of the tree.|
|maximum_temperature|Maximum temperature of the warmest month (in degree C). Values were obtained from the WorldClim2 database based on the geographic coordinates of the tree.|
|AT_AI| Ratio of 'mean annual temperature' over log-scaled 'aridity index'.|

List with a description for each feature:

Start by reproducing the table-rendering problem at the linked OpenML dataset page using the Markdown example in the issue. Trace the website's Markdown rendering entry point and compare its output with the shown GitHub-rendered table; done means the table displays correctly in the dataset description.