iOS build canceled

Hello, I saw there are similar threads, but from mid 2016, so I thought it is better to report, than to resurrect old threads.

I face the following issue with cloud build - every time I try to build my project, the Android build is successful, but the iOS build is being canceled after some time (around 2 hours), end of the log below, the build always stops at the same place.

As config I am using “Always Use Latest 5.x”.

The scene (one of the last log entries) is loaded successfully on mac.
Any idea what might be wrong or how to proceed?

Thread to be deleted… I guess…
Noticed, that just for this app the setting was “Always use 5.3”. Changed it to “Always Use Latest 5.x” and first attempt was build successful. Sorry for the confusion.