CoppeliaSim crashes when connecting with remoteAPI

[jkw0701]

Hello.

I used to use CoppeliaSim well, but suddenly some error came up with the message :

Lua runtime error: ...am Files/CoppeliaRobotics/CoppeliaSimEdu/lua/sim.lua:263: Argument 1 is not a valid dialog handle
stack traceback:
/C/ in function 'assert'
...am Files/CoppeliaRobotics/CoppeliaSimEdu/lua/sim.lua:263: in function

-------------------------------------------------------------
I trace it in that folder, then I found out the error is related to 'EndDialog'.
I did not edit any Lua dialog in CoppeliaSim.
How can I fix this?

[coppelia]

Hello,

the bug/crash does not seem to be related to the remote API functionality. Can you try to isolate the bug, by providing a very simply scene the causes the crash? Or simple instructions how we can reproduce the crash?
What does the application console say before the crash? What platform are you using?

Cheers