Hello again and sorry for the late reply this time.
Is it possible for you to please send me the project showcasing this issue so that I can take a better look at this and why it is happening at “support_AT_paradoxnotion.com” ?
If so that would be really great!
Regarding you question about iOS, NodeCanvas will work fine with iOS, as long as you please follow the instructions explained in the following documentation section: [LINK].