Please bear with Eventide. Like most top notch audio manufacturers, they are a small company, they always do their very best (which is: the best!) and yes, your inquiry is indeed special. But legit.
While waiting for Eventide to fix this issue: I see the bulk dump actually DOES contain the “:”, but it’s not shown when importing. So if you update all entries in the column ‘NAME’ in the ‘FXCHAIN_TABLE’ from the dump directly it works. The colon character is always problematic though, but if TRIM doesn’t work (I’m not sure with SQLite), you must try a subselect and then replace the colon with something else or just ”.
