Controler issues

Any idea why a controler would work with one strip and not the original strip it stopped working with? Reason i ask is when a try a different controler on the original it works. Then i swappem around then it no longer works. Try a different controler it works then i try the the broken one on a different strip it works . Very frustrating.

Do any of these controllers have levelshifters?

We’ll need more details about:

Controller type(s)
LED type/voltage?
Total # LEDs?
Power supply(s)?
Distance for power wire?
Distance for data wire?
Photos of setup?

I found the issue. Had a pigtail that was loose. Repaired and now working. I must have been making connections inadvertently when i was troubleshooting. It caused alot of confusion. Im sorry i didnt troubleshoot more before asking for answers. Ty for replies.

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