This is not necessarily a bug with CHS and is perhaps more likely a bug with OO.
For a good long while, I've noticed that Open Office will hang. I use OO Text Writer, and Spreadsheet, and the problem happens with both.
After investigating, I discovered that OO is hanging when accessing the clipboard (cut/paste), and further investigating determined that most of the time OO is freezing (not responsive) and will become responsive again after (literally) 1 minute or more. It seems that sometimes OO is hanging and requires to be killed and restarted, although it is possible it will return after waiting much longer, I'm just not that patient, usually.
I also discovered that when OO freezes, usually CHS freezes (becomes unresponsive), as well.
I find that if I "Disable" CHS before starting OO, the freezing/hanging issue seems to NOT happen anymore. Perhaps it still does happen sometimes, but I haven't seen it.
So, it's a small possibility the problem is in CHS, but I'd guess the problem is more likely with OO. I haven't seen this problem using CHS with other programs.
In any case, I don't know how easy or how long it would take to troubleshoot this, but perhaps a previously requested feature for CHS would help for using CHS (with OO) in the meantime... That would be to give CHS the ability to disable itself when OO is running and has the clipboard (active). (same for when any other selected programs are running and active.)