space before slash in self-closing HTML tags

This is a dumb question—let me acknowledge that right out of the gate. I hope it's an easy one to answer.

My team is three technical writers, each on a different version of RoboHelp, which you don't have to tell me is a bad idea:

• 2022.3
• 2020.x
• 2020.x+1

My hope is we can all get up to 2022.3 (not .4; there's {probably} a bug that interferes with our Git > Bitbucket workflow) soon, after the dust settles from our current quarterly release madness.

In the meantime, here is a "duck season! wabbit season!" fight going on about spaces in self-closing tags. 2022 puts them in: <br /> and 2020 takes them out: <br/>

Is it definitely due to running different versions of the app, or is there a settings file somewhere that we could tweak? Thank you for your attention to this silly but still mildly annoying issue.