Plot panel displays errors when it is not large enough to show plot

System details:

Positron and OS details:

Positron Version: 2025.07.0 (Universal) build 74
Code - OSS Version: 1.100.0
Commit: fe621e856f2e66144c97d30a3c77471947048e61
Date: 2025-06-09T03:37:56.615Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.5.0

Interpreter details:

R 4.4.2

Describe the issue:

When a plot doesn't fit in the plot panel, it shows a stack trace and an error message:

Error rendering plot to 'Auto' size: Failed to process positron.plot request: Failed to render plot with `id` 360aab5f-01a7-4427-8e57-b109e49ae1a9 due to: Error evaluating '.ps.graphics.render_plot_from_recording(id = "360aab5f-01a7-4427-8e57-b109e49ae1a9", width = 525L, height = 325L, pixel_ratio = 2, format = "png")': invalid graphics state R backtrace: 0. tryCatchOne(expr, names, parentenv, handlers[[1L]]) 1. tryCatchList(expr, classes, parentenv, handlers) 2. tryCatch(.External2(C_playSnapshot, x), error = restore) 3. grDevices::replayPlot(recording) 4. withCallingHandlers(expr, warning = function(w) if (inherits(w, classes)) tryInvokeRestart("muffleWarning")) 5. suppressWarnings(grDevices::replayPlot(recording)) 6. with_graphics_device(path, width, height, pixel_ratio, format, {

Steps to reproduce the issue:

Make the plot panel relatively short (vertically). Run the following:

par(mfrow = c(2, 1))
plot(1:9, 1:9)
plot(9:1, 1:9)

The result looks like this:

If you make the panel tall and run the same code, it looks like this:

Start by reproducing the issue in the plot panel with R using par(mfrow = c(2, 1)) and the two plot commands, while the panel is vertically short. Trace the plot rendering path from the panel and compare it with the behavior when the panel is tall; done means the short panel no longer displays a stack trace or rendering error.