Everything works great except the float option, not at all and the resources option, not at all. 😭
www.cheathappens.com/trainer_update.asp?titleid=20396
I can also confirm that with the latest trainer and steam version the * key for Resource Multiplier does NOT work.
Are you sure you're using the correct trainer? The latest trainer specifically states it's for the Windows Store version.
Even though the Steam version lists a newer revision number than the last Steam/Retail trainer. The Steam trainer works with the Steam version of the game. And that includes the * key for the resource modifier.
I've had no issues at all with the Trainer: Rise of the Tomb Raider Trainer 1.0.638.8 with my Steam version of RotTR version 1.0.647.2.
Also, make sure to run the trainer as an administrator and exclude it from any anti-virus applications that may automatically see its actions in modifying values in RAM as an act of malware.