About LTCG Exemption on multiple properties sell

Dear Sir/Madam, I had taken LTCG on house once 2 years back and purchased X Property. I also have Y property that I am planning to sell and upgrade house by investing Y property amount to new Z property. I came across know in 2019 budget that "the exemption on two house properties will be allowed once in the lifetime of a taxpayer, provided the capital gains do not exceed Rs. 2 crores". If that is case, since I have already availed LTCG exemption to purchase X Property benefit once in my life time, so would I not be able to avail LTCG exemption benefit for future properties that I am selling and investing into another property? If yes, is there any limit that any number of properties I can sell and reinvest the money to save LTCG? Please guide. Thanks and Regards, Pankaj