Hi @davhin, Thanks for the report.

Just to clarify, each call to the plotting function generates 52 plots and after 16 calls (52*16=832 total plots) you start getting the warning?

Are your 52 plots all individual figures (not subplots within a single Figure)?

Which trace type(s) are you using (scattergl, scatter3d, etc.)?

How are you displaying the plots in the notebook ('plotly.iplot', 'offline.iplot', 'FigureWidget')?

After the warning is raised in the Chrome console, what happens when you run the function again. Do the plots show up?

What was the version of plotly.py were you using previously when you didn't have the problem?

Thanks!

I used to be able to use the same Scatter3d plotting function at least 52 times in a for loop, now the max is 16 without fail. Each call generates a single Figure object. This seems to be exclusive to Scatter3d as well, since I found that the other plots still work the same. When I do this:

keys = Data.networks.keys()
keys = list(keys)

for key in keys:
    print(key)
    nw = Data.networks[key]
    plot.force_directed3d(nw, recalc=True) #this uses Scatter3d
    plot.force_directed(nw, recalc=True) #this uses regular Scatter

The plot.force_directed() alsways displays, but of the plot.force_directed3d() I only see the 16 most recent plots.

I am displaying via plotly.offline.iplot(figure) with plotly.offline.init_notebook_mode(connected=True). I also tried FigureWidget and then display() just now with the same effects.

I can however contribute a new/different warning in Chrome "Lost WebGL context. a @ plotly.js:98819", which seems to be connected to plotly/plotly.js#2423

It all used to work fine on plotly 2.7.0, but that install was very messy so it might be that I had some other package installed that helped to circumvent this issue.

I can try to retrace my steps some more over the weekend. PS: Thanks for all the great work, loving plotly 3.0 so far!

Thanks for the info. Are you trying to view all 52 as separate figures simultaneously? If so, I'm not sure how this could have ever worked given that Chrome has a max of 16 total webGL contexts available.

The issue in plotly/plotly.js#2423 is that the only one Figure was being displayed at a time, but the contexts aren't always being freed right away.

Could you gin up a simple notebook that reproduces the issue? I expect you could reproduce it with a any simple scatter3d trace without your particular plotting logic.

PS: Thanks for all the great work, loving plotly 3.0 so far!

Glad to hear it, Thanks for letting us know!

Yes, I am attempting to view them all simultaneously. I originally also thought this might be an issue with the new Chrome build 68 released a few days ago but found that the limitation had always been there, at least for longer than I have been using plotly in that manner.

I will set up a notebook that reproduces this over the weekend, Sunday at the latest. Currently I am at work and this happens in my pet project.

I am a bit swamped at the moment but I will get this done before the week ends. Sorry for the delay.

Unfortunately I find myself unable to reproduce the situation that allowed me to plot as many 3DScatter plots as I wanted. I installed a lot of stuff into that environment and only partially tracked them through pipenv.