Set up position

In the new v3 interface of chess.com I have found a way to do this.
1. Go to the Analysis board (Learn -> Analysis)
2. Set up the position
3. When you're happy with the set-up, flip the board to the side you want to play
4. Click "Finish against computer" in the bottom right corner
If you want to change the computer level, click the top right link where it says "Level X". There you can also change sides and enable coaching mode.
Problem I have following this instructions is once I click to set up the board and set up the board that button to finish against the computer (in the lower right) disappears. Help.
I have the same problem reported by dannypa_27 a year ago (Problem I have following this instructions is once I click to set up the board and set up the board that button to finish against the computer (in the lower right) disappears. Help) Any idea to help??

I have the same problem reported by dannypa_27 a year ago (Problem I have following this instructions is once I click to set up the board and set up the board that button to finish against the computer (in the lower right) disappears. Help) Any idea to help??
Try clearing your browser cache.

same here - cant seem to be able to save a position or finish it against the computer - all this time setting it up and it just disappears...

same here - cant seem to be able to save a position or finish it against the computer - all this time setting it up and it just disappears...
I was able to determine there was a problem in the beta but when I tested yesterday, outside of beta, I had no problems with it.

Devs are aware of a similar bug in beta; I'll have to see if that bug may have made it to the main site without being fixed, which it appears it may have

So It seems the abilty to create your own position has been removed.
Removed from where? As far as I'm aware nothing has been removed.

On a mobile version of the chess.com website. There are no extra pieces to set up a custom position. They have disappeared.

On a mobile version of the chess.com website. There are no extra pieces to set up a custom position. They have disappeared.
I'm not seeing any issues with that.

I had similar problem then by trial and error found a solution. [Note: This solution works for desktop version but not sure how to do it on the app]. Choose "Learn" from the start menu then select "Practice" in the right column. Next, select CUSTOM POSITION and then a link should appear that says "add game or position." Page opens with a board. Now click the SET UP link and then set up your position. Next, click the small PRACTICE icon at the bottom of this page, (bullseye). Now another page opens. Click the COMPUTER icon at the bottom. Select the computer or avatar strength you're wishing to play then press "CHOOSE" and you're now at your desired position ready to continue play. Make sure that the last piece you set up is your opponent's, so it'll be you're turn "to move" when the game resumes.
I find the new Drills section and the ability to use workouts to practice key positions quote useful. Is it somehow possible to manually set up a position and play against the chess coach (similar to the Knight/Bishop checkmate drill only that I have placed the pieces wherever I want on the board) ?