[Bug]: Issues with the map-card since 2025.3

[vingerha]

Description

I have a setup where each tab shows a map and the position of device(s).
Since 2025.3 it often does not show the map but a blank screen for each of the tabs. By refreshing the screen (sometimes F5 a few times) it comes back but disappears again later when re-opening the same dashboard. The additional thing is that this happens only on my https connection, the local http does not seem to have this issue. I used the core map-card as well as a hacs-map-card and both show the same behavior.
Before 2025.3.0 all was fine. Tbh I am not 100% sure if this is a map-card issue but the blank screen only appears within the tabbed setup, the same card 'pure' shows fine

Environment

- OS: core on docker
- Browser: chrome, edge both normal as well as incognito
- Home Assistant Version: 2025.3 onward   
- Tabbed Card Version: 0.3.2

Reproducible configuration

type: custom:tabbed-card
styles:
  "--mdc-theme-primary": yellow
  "--mdc-tab-text-label-color-default": orange
tabs:
  - card:
      type: custom:map-card
      zoom: 12
      card_size: 8
      history_start: 24 hours ago
      focus_entity:
        - person.arjan
      entities:
        - entity: person.abc
          color: "#16335c"
        - entity: person.def
          color: orange
        - entity: person.ghi
          color: orange
    attributes:
      label: somelabel

Additional context

No response

[vingerha]

[vingerha]

Re on the 'https' ... it also happens on http now, it is very inconsistent. I have one browser edge open with two windows pointing to the same http url, one shows the two cards fine (in the tab), the other only shows the non-tabbed map. Other observation, I start from a situation without any HA window, I open one>fine, open a 2nd > fine, open a third > not fine. The 3rd shows the tabbed-map after 3 refreshes

[vingerha]

The 040-alpha 2-release seems to solve it, if I donot report back in 1 week then this one can be closed

[DeFlanko]

@vingerha the latest stable worked for me using a map card.