Part of the characteristics (details) of the goods are not unloaded during the exchange?

Question

1C-Bitrix

I use the standard exchange functionality 1C 8.3. Site on ReadyScript.
When the goods were 1k, everything was unloaded normally, then another 1k was added, and with a full exchange (a portion of 100 per step), part of the characteristics ceased to be unloaded normally, instead of the values ​​for example "1000 seeds" it became 9e23483f-7c8e-11e7-80c3-e6997bcb1762, etc. .d This is all in the event that the unloading is portioned.
If I do unloading in one move, then the characteristics are unloaded normally to a single one, but some of the pictures stop being unloaded.
Well, I think it means there is not enough memory or time for processing, I put it in php.ini (the weight of the pictures is 335mb, I know that a lot, but more on that later):
memory_limit = 512M;
max_execution_time = 36000;
upload_max_filesize = 999M;
Did not help. In general, choose between pictures and characteristics)
Is there any reason to put an extended exchange module? I'm afraid of not docking with readyscript.
The second option is to optimize pictures in 1s, but I can’t understand where they are stored in order to resize, etc.
I would be very grateful for any help in this matter, I have been suffering for a week now, and without any changes.

Answer 1

post_max_size какthe rule is upload_max_filesize
max_execution_time- you can even increase it up to -1 for this script.
max_file_uploads - and of course no one canceled it.
Also for Bitrix 512, of course, it is not enough.
and the weight of your pictures is not much, but very, very little.
Turn on error lorning (just php) and see what's there.