if maps and books are system apps, you used the old one.
sorry, i didn't see this problem coming.
updated files will now be tagged as such.
ed: wait, if you're on ctmod you have enough system space anyway. i remember having trouble trying to move programs back to internal on ext4 roms but i always leave them on sd now. i think moving dalvik in and out would work though if you want to test it.
if you're familiar with adb or the terminal you could simply try
and see if the links are pointing to the ext.