Relationship Not working

[odada11]

Good day all, I  have a table that is related but each time i add property to my table it breaks.

Is there something i am missing pls, the relationships are active ane was initially bi directional, which i have change to single but i still cannot select property.

[lbendlin]

please show more of the data model. Most likely this is caused by ambiguous paths.

[odada11]

Thank you, @lbendlin that is all there is to the model, Just the 4 tables.

[lbendlin]

Please show the visual representation (third icon)