So this never came up until I opened the RStudio Visual Editor, and ever since, the projects that I have used it in have trouble displaying any text that I wrote in plain markdown. Currently on Windows 11, but I also had this same issue on Windows 10.
An example markdown having this problem--which is a markdown file in an R Project--is here:
---
title: "Lecture plans"
output: html_document
---
# Chapter 1
***Day 1***
# Chapter 10: Independent samples t-test
***Day 1***
1. Chapter 9 JASP/SPSS example
2. Chapter 10 content lecture (situation/methods design and formula)
3. By hand problem (Hunger games, problem 1)
4. (if we get to it) Software problem (Hunger games, problem 2)
***Day 2***
1. Slides
2. Problem 1, by hand, for 0.5 points on the quiz
3. Problems 2 and 3 in the software, submitted to Canvas.
4. Quiz review, if we have time.
# Chapter 11: Repeated samples t-test
***Day 1***
*Chapter 11 "mega lecture"*
1. Start out with review of concepts
2. They do the first practice problem
3. I walk through the practice problem for chapter 11
4. They do the practice problem on slide 48 (sleep and studying) *in Excel to speed things up*
Review questions on all three types of t-tests???
***Day 2***
1. HW 3 review (post video)
2. Finish Chapter 11
3. Quiz
# Chapter 12: ANOVA
***Day 1***
1. Review quiz?
2. Chapter 11 Hunger Games final example
3. Chapter 12 lecture
1. They do practice problem # 1 at slide 8
2. I walk them through the example starting on slide 20
3. They end with a by-hand Excel problem (last slide; corresponds to the blank sheet in the Excel workbook)
***Day 2***
1. Announcement: No class next Friday (TG)
2. Cover super important details and main takeaways from HW3
# Chapter 13: TWo-way ANOVA
***One day only***
1. Content lecture
2. Walk through example in slides
## Chapter 14: Correlation and Regression
***Day 1***
1. Cover answers to ANOVA practice guide
2. Multi-factorial (Two-way) ANOVA example???
3. Some kind of recap of all tests so far??? Prep for regression?
4. Slides for correlation
5. Correlation practice- just a simple example for them to run, like Z had. I cover stuff; they run a correlation; we discuss it
## Chapter 15: Chi-square
***Day 1***
1. Cover HW #4
2. Content lecture
3. Practice problem (Navarro walk through)
4. Practice problem (self-guided; Practice word doc)
***Day 2***
1. Content lecture
2. Quiz
3.
I should also note that ever since I opened the Visual Editor, there's this annoying vertical line down all my scripts that won't go away, regardless of session/project and if the Editor was used or not. Looks like this:
When knit, it comes out looking like the screen capture posted in the original post. If I open the Visual Editor though and I make all changes with the VE, the text will stay properly formatted and will knit when it's supposed to. It's only messed up if I try to write regular markdown language without using the VE.
R session info is here:
> sessionInfo()
R version 4.1.2 (2021-11-01)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 22000)
Matrix products: default
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252 LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] Rcpp_1.0.7 pillar_1.6.4 compiler_4.1.2 tools_4.1.2 digest_0.6.29 see_0.6.8
[7] gtable_0.3.0 lubridate_1.8.0 evaluate_0.14 lifecycle_1.0.1 tibble_3.1.6 pkgconfig_2.0.3
[13] rlang_0.4.12 DBI_1.1.1 ggrepel_0.9.1 yaml_2.2.1 xfun_0.28 fastmap_1.1.0
[19] gridExtra_2.3 dplyr_1.0.7 stringr_1.4.0 janitor_2.1.0 knitr_1.36 generics_0.1.1
[25] vctrs_0.3.8 rprojroot_2.0.2 grid_4.1.2 tidyselect_1.1.1 glue_1.5.1 snakecase_0.11.0
[31] here_1.0.1 R6_2.5.1 fansi_0.5.0 foreign_0.8-81 rmarkdown_2.11 pacman_0.5.1
[37] carData_3.0-4 purrr_0.3.4 ggplot2_3.3.5 car_3.0-12 magrittr_2.0.1 MASS_7.3-54
[43] gameofthrones_1.0.2 scales_1.1.1 ellipsis_0.3.2 htmltools_0.5.2 rsconnect_0.8.25 abind_1.4-5
[49] assertthat_0.2.1 colorspace_2.0-2 utf8_1.2.2 stringi_1.7.6 munsell_0.5.0 crayon_1.4.2
RStudio version is here:
RStudio 2021.09.0+351 "Ghost Orchid" Release (077589bcad3467ae79f318afe8641a1899a51606, 2021-09-20) for Windows
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.12.8 Chrome/69.0.3497.128 Safari/537.36
If there's anything else you need let me know!