Op1 internal storege

hey there guys… i made 65 short sounds on my ableton, all in aiff format… im trying to import those to the OP1 creating a new folder on a synth section. but it turns out the only 34 got in.
i read some where that i could load up to 100 new sounds to synth folder.
please keep in mind that it says that still has 125 MB available.

why it doesnt allow to me to import more? is a limmit number of imports per section or is it a metter of internal storage capacity?
does anyone know about it ?