How to fix the infinite saving of a property with the type "Directory" with record sizes > 1000?

Question

1C-Bitrix

Good evening. I got a little problem. I created a property with the "Directory" type in the infoblock - Highload blocks and tried to load it with more than 1000 records. The fact is that the preservation is visually in progress, but no process occurs when tracking. Download screen below:

Please help me solve this problem. Saving with a small number of records is successful!