rmarkdown chart loses gridlines

[rdsk]

I have several charts in rmd using ggplot and they show over 60 months of data. the charts have secondary axes and 4 series. I use vertical gridlines for each month.

My problem is that for some charts all the gridlines appear but for others only about 20 of them appear at random.

I have tried restart R and restarting the PC but the problem continues. Right now the first chart appears perfectly while the second which is a simpler version otherr first with 3 rather than 4 series has lost over 40 vertical gridlines.

At times the charts have all worked OK and so I wonder if there is some memory issue?

[andresrcs]

Any change you could ask this with a minimal REPRoducible EXample (reprex) that reproduces your issue?

[rdsk]

Hi, since the issue is sporadic its hard to replicate. This seems to be talking about similar issue:

Problem with Plots or Graphics Device in the RStudio IDE

The solution there is to type Dev.off() at the console

Unfortunately I get an error I dont underrstand when I try this:

Error in dev.off() : cannot shut down device 1 (the null device)

Can you advise on that please?

[rdsk]

Just realized its my bad. I'm missing dates!