After updating from v2.7 to v2.9 keywords only shows 1 word

Hello!
Okay?

One of my sites is perfect, but I decided to upgrade version2.7 to version 2.9.

Looking at the View-Source of my site
It happens that the meta name = "keywords" showed up to 20 words and after I updated it was only showing 1 word in all articles

Can you help me, how can I resolve this?

Before updating K2 everything was perfect, just changed that point, I was already using Joomla 3.9.6, using PHP 5.6.31 and only changed the code

IS SOME PLACE IN K2 CHOOSING THE NUMBER OF KEYS?

I await a possible help
thank you
success
CARLOS
TEGSEG

Complementing

I just found out now that the problem only occurs when you have a "tags" selected for the news

It happens that since I have a news site, it has muia notici with "tags"

When I take the "tags" of the news, the system starts to choose several words as it was (in version 2.7) before upgrading to version v2.9 (Detail already tested version 2.92 to master and the same problem occurs)

Can anyone tell me if this is a BUG or is it an optional choice or even a bug?

I await a help

Thank you
Success always
Carlos
tegseg

Friends

After researching the whole afternoon and so far at night and working on it, from what I understand, it may be a new schedule of the program v2.9

When there is a TAG chosen in an article he prefers to the TAG and not to the words existing in the article. It happens that our articles have a maximum of 1 or even 2 TAGS and in this case preferred the number of words that were much larger, ie around 18 words per article

I work with an SEO plugin that automatically chooses some words from the article and works very well with WordPress v2.7.

Only after I upgraded to the V2.9 did I notice this difference.

My question, I have how to turn off this Itel of when there is a TAG system to give preference to this?

If so, how do I do this, please?

I would like to let the plugin continue to choose the words automatically ....

Has as?
wait
hugs
Success
Carlos
Tegseg