MT4 expert properties windows doesn't show up sometimes

Hello,

I just have an issue with some EAs in Mt4. I could set the properties of an EA when I load it onto a chart and I can still set them some time after that, but sometimes this doesn't work, where I click on expert properties and the settings window doesn't show up, in this case, I found that the EA is not trading actually, once I restart MT4, the EA works and posts many trades when loaded,. I don;'t why EA got fake-frozen, where the properties window can't show up. Any one seen this before? Thanks!!

This is standard behaviour when EA is written in wrong way and does start some infinite (or just very lenghty) calculations. When EA is calculating something, properties window cant appear and typically EA do not do any other task, like trading. Also, if you remove it from chart, it typically takes few seconds, then MT4 removes it by force (putting some error message to the journal or experts tab).

The fix is to change EA code to avoid such situations, it might be trivial, or very complex, depending on the EA code. You should consult the original programmer who did wrote the EA for you and ask him to fix it.