As above.

Most likely, the maximum allowed number of inputs (otherwise called IOs or parameters) per object, which is set to 480, has been reached.

No error message appears when the maximum number of inputs is exceeded, the inputs are saved as enabled in object settings but otherwise not shown in TT2 user interface.

1- Disable unnecessary inputs until you reach less than 480. Keep in mind that Ruptela devices only allow 80 inputs in configuration (some later split in SW side), so in most instances, no more than 150 enabled inputs is necessary per object.