Ah I see the problem. I think it's because of the dot (".") in the directory. I'll try to look into it. Weird stuff...
128kB sample support was fixed in PT3.62. I don't know if it could properly load 128kB samples, but it could at least load MODs with 128kB samples and you could see all of it and set loop points and stuff. The replayer could also play loop points above the 64k barrier. PT3.15 and older versions had severe problems with 128kB samples.