Current-bar-of-the-transformer-indicator

Nope, it's not wrong. Daily to Weekly/Monthly compression always gives you the most recent bar's value if it's done in the middle of the week/month. Since we can't be sure the market will actually trade the following days in all cases, we can't hold back the current value in anticipation of Friday/end of month. The simple solution is to only run such systems at the end of the week/month if they depend on the actual weekly/monthly data.

And if something like that?
https://www.wealth-lab.com/Discussion/Monthly-indicator-on-a-daily-chart-on-the-current-bar-5768

Yes, but I think we can do better. Since we have the information on the market's trading calendar we can determine if the last bar is the last bar of the period or not. I'll work on doing this for the next release so we can improve the Indicator, thanks!