Logos crashed last night while editing a reading plan created under Logos 4. On a number of occasions since then has stop responding while trying to edit same plan and I have had to force shut Logos because it has stopped responding and the app hung without crashing.
2727.Logos20121225.zip
The Error 1887 History Manager crash crops up in a variety of scenarios. I would delete and then try recreate the plan.
Thanks Dave. Wondered if it was relating to this. Deleted plan in the end. Not a big deal to do so.