Intervalometer not working on a7rii

[Thefallguy]

I have a Neewer intervalometer for my A7rii which has worked fine in the past but lately will not work.  My settings are the same  as previously used...manual setting, bulb mode.  I have version 4.01 software that had been updated about 6 months ago or so.  I tried a few things to no avail.  One thing that did work was holding the shutter release half way down and pressing the release on the intervalometer, it would activate the shutter but if I released my finger from the half press, the shutter would close even if the intervalometer button continued to be pressed.  This just tells me the the electrical connection to the camera is ok but the functionality not working.