Is anyone else having problems with MatLab 2020b freezing when saving/viewing figures? If so do you know any solutions?

Often I find matlab freezing when I try do things to a figure I've plotted, etc zooming in and out, and closing or saving the figure. If I restart matlab the problem goes away for a short time but after a few hours it comes back.

Looking in the task manager there does seem to be a large build up in the amount of memory it is using, currently at it's at 3GB but the data in my workspace is only 50MB so this seems excessively large.

I only started using 2020b ~2 weeks ago and I've never had this problem when using 2017a.

If anyone has suggestions please let me know!

[Foad Karimian]

I have exact same problem. I am using R2020a.

[Murat Azizoglu]

Same here. Matlab (2020a) freezes frequently when a figure is open. Problem seems to go away once the figure is closed.

Answer 1

[Bruno Luong]

I don't know if you have the same problem, in my case I found a large memory leak of TMW graphic system when using opengl hardware

https://www.mathworks.com/matlabcentral/answers/596443-memory-leak-with-opengl-hardware?s_tid=srchtitle

My workaround: The problem goes away with

opengl software

however this affects the graphical render quality and speed of certain interrractivity (zoom, rotate, etc...).

I can switch between hardware and software in my app, by feels very uncomfortable with this issue.

Not sure about version, I only test my code from R2018b, and the issue occurs with this version up to R2020b.

But first check if you don't add unintentionally (redundant) graphic objects in your figure.

[Bruno Luong]

Revisit my complain 18 months ago, I run the same program on R2022a and Windows11, same computer, the big memory leak of opengl hardware seems to be gone.