"Automatically evaluate"? Never heard of that option. Do you mean:
"Do not replace existing value (if any)" in an auto-enter calculation?
Have never seen that option change on it's own.....
Sorry Phil, did I miss the obvious - FMPA 16 - Data Viewer!
On the contrary, seems like I missed the obvious.
Have you updated with the latest bug fixes? Don't know if that will make a difference, but it's always the first thing to check for something of this sort.
Yup 184.108.40.206 on Windows.
This really goes along with the wish that we could enable or disable entries in the data viewer (in fact the same 'Automatically evaluate' tick box within 'Edit Expresssion' but in the Data Viewer list ) rather than having to constantly comment out calculations and enter a 1 (so it doesn't collapse the new lines into pilcrows), so if working on multiple SQL they don't all try to evaluate at the same time - again, more downtime.
The way the evaluate switches from off to on doesn't seem to be linked to closing or opening the Data Viewer.