TCL error: _cgc_pick_clientside

Not sure what you mean, but - now that I look back at my own post, I believe this is a very simple error - there was a value of "-31744" that was sent to a switch statement that did not have a corresponding matching value. Maybe this is a default log message to spell out the fact that not match was found and a default option was not given to choose. The other meaning could mean that the value "-31744" was completely invalid for a switch statement, that it needs to be a positive value or within a specific range.

These are just hypothesis's.