When Kodak reformulated their films and moved to a new modern coating facility they produced a very fine grained film in 400TX (the new name for Tr-X). So I am not surprised by your findings.
Might I suggest that you try HC-110 1:50 with 400TX. This is a very nice combination. Development times are available at http://www.covingtoninnovations.com/hc110. Use the times for dilution E (1:48). The dilution 1:50 is easier to measure than 1:48. Just use 5 ml of concentrate to make 250 ml of working strength developer.