Tableau not reading decimals properly

I am trying to load a very large data set (nearly million rows with 20 some columns) in tableau. Most of the columns are decimals. However tableau is replacing decimals with nulls. For eg as shown in the picture tableau is able to load integer values and 0s properly within the same column. However where ever there’s decimals it loading as null.

What might be the reason? I am using Tableau Public