Hi tried using the Report/Contact this App. but it said i already had already used the service, so i couldnt used it again, which is probably broken also.

But on my planet a "Vigneuan Demon Massive Mining: 15x Mega Rich" I had a Uldri Spacial Marker II, after a month +several days later, i tried upgrading it finally to its III form. And it vanished, and left an empty space on the planet 62/63.

Could anyone explain this problem or glitch ? or pls help .

Did you upgrade it from the actions tab?

It sounds like maybe you clicked demolish and then clicked yes afterwards and demolished the artifact from the planet, rather than clicked the upgrade button.