Natron invalid pointer error on ubuntu 25.10

Hi,
I am using Ubuntu 25.10. Natron was working fine till last month. Since last month, I have been getting this error

free(): invalid pointer
Aborted (core dumped)

GUI opens, but when I load ntp file, it crashes.
Could you please help me solve this issue? Since then, I have been using Ubuntu 24.04 in a VirtualBox box, and it’s working fine, but not in 25.10.
In Ubuntu 24.04, if I install newer updates, then it also shows the same error.