[2019.2 - 0140] Gamma throws exceptions and creates ghost IOBoxes when creating IOBoxes

[sebescudie]

hei there,

was playing with DragDropEvents when, after I connected an IOBox to the ouput of HoldLatest that was taking an Observable<Object>, the patch started throwing exceptions and rendering oddly :

the two Result pads are like locked, you can’t even select them. There used to be a link between DragDrop and the Foreach (via a pad) that is now gone.

Here’s the patch causing the issue (you can discard the external nuget here) :

TouchZone.vl (54.6 KB)

edit : something similar happened while trying to create an IOBox of type IDataObject in that scenario :

edit 2 : just happened here on a different project (still 2019.2 0140) when creating an IOBox out of a text node, got an Object Not Set […] exception, and then got this ghost IOBox that cannot be selected/moved :

After closing gamma and re-placing said process node in the application patch, this exception popped and the patch rendered like this :

after randomly clicking in the patch, the ghost IOBoxes now display “In”

looks like you can repro that by creating a Text node in a fresh document and drawing an IOBox out of it.

[Hadasi]

This is making the software pretty much unusable for any extended period of time and I’m forced to revert back to 2019.1. Some feedback please, devs.

[sebescudie]

looks like that was fixed in 0169, is it devvvvs?

[joreg]

yep it seems so. thannks for the report!