I used Xojo 2020r2.1 on Saturday and Sunday and found a strange new behavior I do not reported (and I will not).
For unknow reasons, I get dots here and there in the Code Editor and was asking myself why, but I had no time to report it.
Today, I made some changes to files in a M1 based computer and fall into the same trap.
After a minute or two, I noticed the dot appears each time I set two consecutives spaces (a room for a number to add later because unknow at typing time).
I checked in the Control Panels, Keyboard and notices a preference that said something like: “add a dot if two spaces”.
It is an OS special feature said to add the users as well as Titlecase the first character of a word, etc.
So, for your users, add help feature carefully because it may not help.
That is the reason I do not reported it.
For the record:
Sometimes I started to code a line with “ =
.\tab“ and nothing happens. (Deciding to wrote a variable name later, none comes to mind at that time)
I Dim and add the variable name, place the cursor at the dot and press \tab to get the autocomplete and I get it!
Now, I know how Xojo works and I (try to) act how I can with that. Beating the system (or Xojo) is a vain quest.