UDF saved case recalculation failed
 

Hello,
First of all, I use Ansys Fluent 2019R1&18.2,visual studio community 2017,win10 x64

I run my UDF case well when first initial and calculate,nothing was wrong. But any autosaved case could not calculate at the very beginning step.

The same problem didn't happen when I use fluent 15.0 before I changed my PC.

Display Zone Motion：before and after pictures
https://i0.hdslb.com/bfs/album/e65ce...518w_1e_1c.png

First step in autosaved case
https://i0.hdslb.com/bfs/album/66623...518w_1e_1c.png

DEFINE_GRID_MOTION() uesd in the UDF，I have no idea how to fix it.

Thanks for your advice!

Fluent 2019R1 runs in parallel by default, which is differ from previous versions,
check how you store your variables in UDF

best regards