Pop up form doesn't work

[DevRev]

Hi all,
I'm having kind of a weird problem and I'm not able resolve it. Here's what's happening:

I have a main for that has a button on it to open a pop up form. However, sometimes when I ope the form it doesn't open. I can open it three or four times sometimes without a problem then out of the blue it doesn't open. When I go into design view it looks like the form has been reduced down to it's smallest size and it order to view it I have to maximize it. After maximizing it I can save and open the form again and it opens properly. However, after opening it a couple of times the same thing happens.

Here's what I've tried so far:

1 - On Form open and load I tried this:
Private Sub Form_Open(Cancel As Integer)
DoCmd.Restore
DoCmd.RunCommand acCmdSizeToFitForm
End Sub

2 - Set Auto Resize to "No"

3 - Recreated the form from scratch and it still happens.

4 - Did compact and repair on DB

PS. the pop up form has sub form on it. Would that cause any issues?

 

[RuralGuy]

I would comment out all of the code in the Open event and set AutoResize to NO and AutoCenter to YES. What code is behind the Open the PopUpForm button?

 

[DevRev]

The command button has an openform macro that is used. I have resize set to no and I have tried it without the code but I haven't tried setting autocenter yet. I'll try that.