Smart observer doesn't detect backtanks

[Red-Parrot-MC]

Describe the Bug

The smart observer doesn't give a redstone signal when a (copper) backtank is placed in front of it.

Reproduction Steps

1. Place a smart observer
2. Set the filter to a backtank
3. place a backtank in front of it
   ...

Expected Result

The smart observer should give a redstone output when the filter is set to a copper backtank and there is a copper backtank in front of ot.

Screenshots and Videos

Crash Report or Log

No response

Operating System

Windows11

Mod Version

0.5.1f

Minecraft Version

1.20.1

Forge Version

47.2.17

Other Mods

No response

Additional Context

No response