image mosaic - Geoserver ImageMosaic index is not updating with cURL

I am successfully adding a new ImageMosaic of GeoTiffs with the Geoserver REST API

curl -v -u admin:geoserver -XPUT -H "Content-type: text/plain" -d "file://D:/tifdirectory" "http://localhost:8088/geoserver/rest/workspaces/wsp/coveragestores/tifdirectory/external.imagemosaic"

The .SHP index is then created in my "tifdirectory" along with the "tifdirectory.properties" file and everything works well after I setup the layer parameters directly in Geoserver.

My GeoTIFFs are updated daily, so I need to update the footprint index. I tried with this command:

curl -v -u admin:geoserver -XPOST -H "Content-type: text/plain" -d "file://D:/tifdirectory" "http://localhost:8088/geoserver/rest/workspaces/wsp/coveragestores/tifdirectory/external.imagemosaic"

At first, it seems to work since there is no error in the response, I receive:

* upload completely sent off: 72 out of 72 bytes
< HTTP/1.1 202 Accepted

But my ImageMosaic index (.SHP) is not updated. What am I missing here? Is there another way to update to mosaic index?

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I think that I could make it work by deleting the layer and coveragestore daily before creating it back. But, when I create the layer I need to manually edit the parameters in Geoserver UI. How can I create it with cURL with all the parameters (crs, BackgroundValues, SUGGESTED_TILE_SIZE, etc) already set?