Hi,
Wondering if anybody has ever seen the k2 content module, set for specific k2 items, selects items ok, hit save and all the items disappear.
Latest dev version (K2 v2.10.4 [Dev Build 20210227])
Joomla 3.9.24
php 7.3.27.

There is a sub-template override but switching back to default yields the same result.
The only error I can see is a php notice error which I'm not sure is related.
PHP Notice: Trying to get property 'alias' of non-object in /var/www/clients/client1/web5/web/components/com_k2/router.php on line 283'

Any pointers much appreciated.

Hi,
Thanks for the reply. Disappears from both backend and front end. If I go into the module on the backend, I can see the specific k2 items selected, without doing anything, just hit save and the k2 item disappears. When checking the database table _modules, params field, I can see the itemid in the items element before I save. Then after save the items element is gone. I've been getting around this by directly updating the _modules table, params field with required k2 item ids as needed. I've attached some before and after to show the details.

Thanks...Vince
 

Thanks for your reply. Agreed this is very weird. We host the website ourselves on a google cloud server. It's a standard LAMP install. We also have 5 or 6 other sites hosted on it. I tried increasing some php settings memory_limit etc but no change. The site makes extensive use of the k2_content module (51 modules) but I can't think that would matter.

I'm going to try some testing on one of the other sites on that server, to see if the problem exists on another k2 install.
Maybe able to isolate things a bit.

So weird. Did a test on one of the other sites on the same server, same php, same hosting setup. K2 content module works perfectly, saves specific items as expected.
The problem site is quite old (5 years+) and has way too many components etc but everything is up to date, so likely not a problem. It's just a very odd little problem. The site is due to be rebuilt this year anyway, so I'm not overly worried about it. I've just been updating the _modules table directly whenever needed (not too often). If you think of anything else worth checking, let me know.

By the way, thanks so much for all the work on K2. It continues to be a vital part of all our websites.

Cheers...Vince

Thanks Fotis,
Good thought but no luck. It's a Debian 10 install with mariadb 10.3/mysql 5.7. php 7.3 No recent upgrades, although the problem has existed for quite some time. I tried a few variations with sql_mode= but no change.
I'll park this for now and dig at it further when I have some spare time. Thanks for the pointers.

Cheers...Vince