Change some translation terms after Ignition upgrade from 8.1.16 to 8.3.6 version

Good afternoon, after upgrade my project from Ignition version 8.1.16 to 8.3.6, there are some translation terms changed.

For example transaltiom terms: QF86.2 Termica Skip 1 in Allarme, it's changed in : QF862 Termica Skip 1 in Allarme

The point caracter is deleted.

What is the reason???

Thank you very much