What did you try to do?
closed and opened the app again
What happened instead?
nothing happened
Did the problem happen while using wi-fi, mobile data, or both?
Wi-fi
Did the bug happen in the app, on PC, or both?
PC
What operating system is your PC?
Windows 10 pro
Which browser did you experience the problem in?
on the 3d viewer
Can the bug be reproduced?
i think so
Additional comments:
look at this
https://postimg.cc/9RVX790F