infoField Problem

On 3.77, I have a schema with image upload. For info1 I have named it "Alt Text" and I have erased info2 "Caption"

The problem is that when I save it, info2 "Caption" comes back and won't erase. I thought to myself, I would just go in and manually update the schema file, but I don't see "info2" or "Caption" listed

'images' => [
'label' => 'Images',
'type' => 'upload',
'allowedExtensions' => 'jpg,jpeg,png,webp',
'checkMaxUploadSize' => '1',
'maxUploadSizeKB' => '5120',
'checkMaxUploads' => '1',
'maxUploads' => '50',
'resizeOversizedImages' => '1',
'maxImageHeight' => '1080',
'maxImageWidth' => '1080',
'createThumbnails' => '1',
'maxThumbnailHeight' => '500',
'maxThumbnailWidth' => '500',
'helpMessage' => '1080x1080 pixels preferred',
'createThumbnails2' => '1',
'maxThumbnailHeight2' => '250',
'maxThumbnailWidth2' => '250',
'newUploadPosition' => 'bottom',
'infoField1' => 'Alt Text',
'infoField1Required' => '1',
'useCustomUploadDir' => '1',
'customUploadDir' => 'listings/',
'customUploadUrl' => '/xxxxxxxxx/uploads/listings/',
],

Follow-up: after further review, the "Caption" does appear in the Info2 field after I delete and save, but it is not showing up when I upload images. It's more of a housekeeping issue because it doesn't cause any problems, but it does reappear if I save the schema without removing it first each time I want to modify the schema.