cant keep typing in userform textbox after change event

I have a userform that i have set the showmodal property to false.
this form has a list box that is populated with a huge list of items. I have a textbox in the userform that i use as a filter. so as the user types in something it filters the results in the listbox.

this was working fine but i added to the code to put a tooltip in when hovering over a item in the listbox. (using windows API to achieve)

The problem now is after i type one letter in the text box and it runs the change event it doesnt place the cursor at the end of the textbox anymore to continue typing.
I have tried setting focus to the textbox at the end of the event but nothing happens. I have searched all over the internet with no luck.

any ideas??

thanks
JD

nathansav thanks for you reply but
that didn't work it moved the whole userform to the left a little but i still need to click in the textbox.
I did turn the showmodal property back to True and it worked. But i need that to be false as it interacts with the worksheet allowing the user to select cells.

Any ideas?

okay,
there is alot of stuff going on in this file. I had to delete alot of stuff to get the file size down to upload. the worksheet labeled General Summary is the sheet you need to go to. Hitting the Insert Pay Items button will bring up Userform2 it is running the InsertPayItems() sub in the standard module labeled InsertPayItems. which is the userform im asking about. there are two text boxes that run a change event. one has a label next to it saying search item number: (textbox named txtItemCode) and the other has a label saying Search Description (textbox named txtDesc)
as you type in any of these two textboxes it will run the change event and filter the data in the listbox.
in the change event i need to distroy the tooltips and then remake them due to the list box changing.

I think it might be a bug or something because after typing in the textbox and it runs through the code i can hit the backspace button and it will delete what i had type, i just cant type anything.

any help would be awesome i might just have to remove the tooltips because it was working great before i added that.
tooltipexample.xlsm