Hi! If you create the following Glamour browser: ``` tabulator := GLMTabulator new. tabulator column: #one; column: #two; column: #three. tabulator transmit to: #one; andShow: [ :composite | composite fastList display: [ :x | Array with: x ] ]. tabulator transmit to: #two; andShow: [ :composite | composite fastList display: [ :x | Array with: 2 * x ] ]. tabulator transmit from: #one; to: #three; andShow: [ :a | a fastList display: [ :x | Array with: x ] ]. tabulator transmit from: #two; to: #three; andShow: [ :a | a fastList display: [ :x | Array with: x ] ]. tabulator openOn: 4. ``` You will get the following browser: if you then select 4, the third list appears. If you then select 8, the value is changed: But since then, the third list does not change. It stays with 8 value forever. Do I miss something? Should I define it differently? Or if it is a bug: Can you give me insights how to fix it? Tested in the latest Pharo 6. Thanks! Juraj