v1.5.x and following: Widgets not loading in vis-2 - "Unknown widget type tplMaterial2*" errors, widgets missing from palette

[d-berk]

Description

After updating vis-2-widgets-material from version 1.4.10 to 1.6.1,
all Material widgets stop working completely in vis-2.

Symptoms

All existing Material widgets on dashboards show error:
"Unbekannter Widget-Typ tplMaterial2Lock" (and similar for all widget types)

Expected Behavior

• Widgets render correctly as in v1.4.10

Actual Behavior

• Widgets are not registered/recognized by vis-2
• Menu does not show the Material-Widgets section
• All dashboards using Material widgets are "broken"

Screenshots

v1.4.10 (working):

• Material-Widgets visible in palette
• Widgets render correctly

v1.6.1 (broken):

• Material-Widgets missing from palette
• All widgets show "Unknown widget type" error with raw JSON

Steps to Reproduce

1. Install vis-2-widgets-material v1.6.1
2. Open vis-2 editor
3. Observe missing Material-Widgets in palette
4. Observe existing Material widgets showing "Unknown widget type" errors

Workaround

Downgrading to v1.4.10 resolves the issue 😁

Versions:

Adapter version: 1.6.1
JS-Controller version: 7.0.7
Node version: 22.22.1
Operating system: debian in lxc

[morskipas]

I have exactly the same problem

[drdisk]

Same here. What also works is a downgrade from vis-2 to, for example, 2.12.9.

Adapter version: 1.6.1
vis-2 version: 2.13.17
JS-Controller version: 7.0.7
Node version: 24.14.1
Operating system: Ubuntu 24.04

[fonebone42]

might this be related to this issue here: issue #576
i.e., might you be using a DNS name with a subdomain ending with iobroker name like iobroker.home?

[d-berk]

Thanks @fonebone42 for giving this hint! I can confirm the relation to #576.

My ioBroker instance is accessible via iobroker.fritz.box (local network only).

Accessing vis-2 through this URL causes the Material widgets to fail to load.

Switching to the IP address instead fixes the problem immediately.

[drdisk]

Same on my side: iobroker.ex.... changing to ip or another hostname: everything is fine. Thanks for the hint!