table/create table copy = all OK, database tree structure gets "refreshed" with no prob, new table is there prompt
table/drop - whole tree refreshes and closes itself - that is bad.
See no reason why the second case would not be as smooth as first.
Ads were blocked by your webbrowser.
This is not a problem, but keep in mind that developing HeidiSQL, user support and hosting takes time and money.
You may want to send a donation instead.