Sparklines not displaying

@tmk2020 any chance you could send us the system report to wordpress at matomo dot org? You can copy/paste the anonymised system report at the beginning of the Matomo Analytics => System report page.

I wonder two things: Is there maybe a memory problem, or maybe some WordPress plugin is printing warnings or something thus the response isn’t a proper image. Maybe this could happen if eg WP_DEBUG is enabled.

if you could open that URL directly, say /wp-content/plugins/matomo/app/index.php?date=2020-01-26,2020-02-24&forceView=1&viewDataTable=sparkline&module=API&action=get&disableLink=0&widget=1&idSite=1&period=day&columns=nb_visits%2Cnb_uniq_visitors&colors=%7B%22backgroundColor%22%3A%22%23ffffff%22%2C%22lineColor%22%3A%22%23162c4a%22%2C%22minPointColor%22%3A%22%23ff7f7f%22%2C%22maxPointColor%22%3A%22%2375bf7c%22%2C%22lastPointColor%22%3A%22%2355aaff%22%2C%22fillColor%22%3A%22%23ffffff%22%7D. Can you check what the response code is and whether there is any response at all? Just in case you are familiar with the browser developer tools and in particular the network tab.

@tmk2020 We’ll be releasing an update in the next 7 days that likely fixes the issue in case it’s not working yet. As I haven’t heard anything in a while will close this issue for now. Feel free to let us know in case this isn’t working for you.