Zapier API Updating Projects Custom Fields wipes out all other custom field data

[billnash]

I have 2 custom text fields on projects that contain customer submissions I'm sending in from Google sheets through Zapier, Service Titan Update Projects Module.  Both custom fields update as expected, but when existing data is in one custom field and the other gets new data, it deletes/resets the data in the other custom field.  Is this a bug in the module, or am I doing something wrong? I'm using the custom field ID, then populating that field with the data, and each field has its own unique ID, but no matter which field updates the other field erases.

Custom Fields before: Pre Project Checklist populated with Zapier
Color Submissions: Populated manually in ST


After running the Color Submission Zap 

[JohnMurphy]

I've been heavily using this feature as well, the connection only allows 3 custom fields to be filled, which sounds great, except I have more than 3 custom fields.  I do not know why it clears out the other fields, it shouldn't touch them since there's nothing asking it to.  now everytime my zap runs to fill in 3 custom fields, it deletes the data in the other ones... so now I've lost tracking on those fields that are now empty.  I would've hoped that somebody would've responded sooner than now.

I updated the zapier connection to Service Titan today, the problem still seems to happen. 😞