Transition from R2024b to R2025a breaks custom plotting script

Hi everyone,

After upgrading from MATLAB R2024b to R2025a, I’ve encountered an issue with a diagnostic plotting script used to visualize telemetry data. The script is part of a custom encoder class and is designed to overlay three types of error events—CRC, C2L, and Invalid Data—on top of raw data.

While the error count is still computed and displayed correctly, the error markers are no longer plotted on the graph (a blank figure shows up).

Here’s the relevant portion of the code:

        function plotDiagnosticOnRawData(obj, experiment)
            
            obj.timestamps = experiment.GetTimestamps();
            rawData = experiment.GetRawData();

            plot(obj.timestamps, rawData(1, :))
            hold on
            plot(obj.timestamps, obj.crc__.*rawData(1, :), 'r*')
            plot(obj.timestamps, obj.c2l__.*rawData(1, :), 'g*')
            plot(obj.timestamps, obj.invalid_data__.*rawData(1, :), 'b*')
            hold off
            title('Encoder raw data (Joint position)');
            subtitle(['Joint position, (joint speed: ', '20.0', ' $[\frac{deg}{sec}$])'], 'Interpreter', 'latex');
            axis([-inf, inf, -2^15, 2.01^19]);
            xlabel('Time (seconds)');
            lgd = legend('Joint position', 'CRC error', 'C2L error', 'Invalid Data error');
            lgd.FontSize = 5; lgd.Location = 'north'; lgd.Orientation = 'horizontal';

        end

Occasionally, I also receive the following warnings:

Warning: An error occurred while drawing the scene: Could not find node in peer tree during reparentChildren

Warning: An error occurred while drawing the scene: Could not find node in peer tree during replaceChild

I already have check the matlab forum and changed the renderer setting using

opengl software

But the issue persists.

Any suggestions or workarounds would be greatly appreciated!

Thanks in advance,

Antonio

[Star Strider]

Note that opengl no longer works in R2025a, that apparently uses 'WebGL'. (I've been having persistent problems with R2025a graphics, and working with TMW to solve them.)

Your best approach will probably be to Contact Support.

[Antonio]

Thanks!

[Star Strider]

My pleasure!

[Andrew]

I have the same issue when I switched to Matlab 2025a. I found that when I stepped through the code, waiting for the figure to update after each line, it was able to plot everything. When I ran the code without any breaks, I got the same warning and it didn't finish plotting.