Which version of Zeos are you using? preferably you should also attach a sample project.
Not sure how you find out what version you are currently running I opened the zdataset but no version info in the file.
Anyway I checked my downloads and this should be the version details
8.0.0-stable build at 2024-04-07 12:29:02
Checking Zeus website this is the currently offered version.
Also I created a separate test.pas file with the zMemTable and when I ran it did not cause the issue so I have no idea what to try next.
Searched all the .lfm code and .pas file there is nothing created in the top left.
Also with out the code to create memtable fields all works (except table) but when I add that back I get the small square at the top left!!!
Also one other question with the Delphi memtable you were able to drop the memtable on the form setup the fields then just open and use.
With zMemTable you can do the same but when you open the table if say field not found?