I think, your update brokes plugin. Plugin removes thumbnail after uploading. I have php error “PHP message: PHP Warning: filesize(): stat failed for /wp-content/uploads/2019/03/thumb_tmp/new_poster95.png in /wp-content/plugins/video-embed-thumbnail-generator/video-embed-thumbnail-generator.php on line 6509”
Version 4.6.23 should fix the problem of thumbnails being immediately deleted if you upload them and select them from the media library manually.
I’m not sure what I can do about ERR_CACHE_WRITE_FAILURE. As far as I can tell that’s a local browser cache size issue.
Thanks for help!
I have other problem now. I dont shure, that it is your plugin fault. I upload video to advanced custom field and select it. I upload thumbnail manually and select it. I get white screen(empty) modal form “Change file” with disable “update file” button http://joxi.ru/E2pW3VYf7VxOxm. I close modal form and open it again. It broken at first time only. I upload thumb and select it without closin form. It give me error. That problem in all versions of your plugin. I fix it repeated opening thubm select window. But it is not uncomfortable
I can verify that this happens when using the Advanced Custom Fields plugin, but it doesn’t seem to happen when not using that plugin. I don’t think I know enough about how the media uploader or the Advanced Custom Fields plugin works to fix it.