Lovelace custom:button-card - not found with local access

Configuration Frontend
1

Hi Everyone,

I’m fighting with this strange problem that if I access my dashboard with LAN IP custom:button-card element is not found. However if I use WAN access over reverse proxy it works normally.

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LAN http access

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WAN https access

I’ve googled that the first yellow marked reference works for this addon. I added the second one because that path works for all other HACS items - but it did not fix local access problem.

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Maybe someone has met this problem before - could you please share your experiences?

Br, György

2

Hi Everyone,
situation seems to change now, it acts like locally accessed Home Assistant custom:button-card is reported to be unavailable for a while after restart but gets visible after. Remote https access works continuously.
Br, György