Logos 5 will randomly begin utilizing a large percentage of the processor on my MBPr 13" and does not seem to quit unless I Force Quit Logos and then re-open it. This does not appear to be indexing on the part of Logos, because there is no indexing icon in the menu bar.
This is a problem because not only does it use a large percentage of my cpu, but will also increase the temperature dramatically (~95-100C) and drain the battery.
System Specs:
OS X v.10.8.3
Logos 5.0b SR-2 (5.0.2.0743)
Library Size = 4000-5000 (2759 shown)
Intel i7 Dual Core 2.9GHz (3.6GHz Turbo & 4MB Cache)
8GB RAM (DDR3 @ 1600MHz)
Intel 4000 Graphics (768MB Shared)
512GB SSD