useful-markdown-cards show unformatted suddenly

[Mariusthvdb]

see https://community.home-assistant.io/t/my-lovelace-plugins/70726/568?u=mariusthvdb

all my useful-markdown-cards show unformatted suddenly, has anything changed in the backend causing this? I didn’t upgrade HA at all…

this worked nicely before:

  - type: custom:useful-markdown-card
    content: >
      Vandaag is het **<font color=var(--secondary-text-color)>[[ sensor.vandaag.state ]]</font>**.

      Volgende afval-ophaal over **<font color=var(--secondary-text-color)>[[ sensor.trash_next_in_days.state ]]</font>** dagen:

      **<font color=var(--secondary-text-color)>[[ sensor.afval_datum.state ]]</font>** : **[[ sensor.afval_soort.state ]]**

but now shows as:

[Mariusthvdb]

well without any change on my part, this has resolved mysteriously:

case closed... (never mind the bad contrast, still in testing phase ;-) )