Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1060 3GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.30
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: `rBf1aa4d18d49d`
**Short description of error**
The bounding box(dimensions) updating with delay in drivers.
**Exact steps for others to reproduce the error**
Distance between cylinders sum of cylinder diameter and size of the box in the X-axis. The bug is in delay calculating the bounding boxes.
You can recreate it by steps with the file in attachment.
or you can download file here [[ https://drive.google.com/open?id=12Eg23rWKiWrtsXRQdFCYRUe3N6z3_Wlw | name ]]
1. Select the box.
2. Change the scale of the box.
3. Select the cylinder.
4. Go to the modifier properties.
5. In the "Array modifier" click on drived X-axis constant offset with LMB.
6. Press ENTER key to apply. (The distance between cylinders should update)
So the idea is to update automatically without unnecessary steps.
Also, I create a topic on blenderarist.com with ideas for better driver workflow. Please check them.
[[ https://blenderartists.org/t/bounding-box-driver/1202163 | name ]]