Resistor getting too hot. Damaged?

[miniaturecrazy22]

I have had this LED flash light for a few years. It came really handy when the bathroom light was knackered and we had to wait 2 weeks for the housing association to change the "bulb".
Anyway, I do beading work and it's also a brilliant light for when I drop beads or the needle to find them again. So a couple of weeks back the LED strip didn't light up properly and was flickering. I change the batteries and it still wouldn't work right. So I bought a new one.
And then this autistic person here was curious and opened it up to see if I could fix it. Batteries in switched on and it lit up, not fully and it was flickering. Turned it off, noticed the smell and the resistor was extremely hot. Burn your fingers on the 200C oven rack hot.
The resistor is red, black, gold, gold which doesn't say much for me.
My question is would you replace it with the same one or would you suggest a different one? According to the colour code calculator it has Resistance 2.0 Ohms, Tolerance +/- 5%, Minimum 1.900000 Ohms, Maximum 2.100000 Ohms. And where the heck can I buy some? I have found all sorts but not this one.
The yellow LED strip has 30 micro LEDS.
I have attached a couple of photos so you can see the set up.

 

[danadak]

When the strip is lit are all its segments on ? Asking because if
several are shorted that would create more power for the R to
absorb, hence get hotter.

What are the battery voltages ? What V is applied to the strip when first turned on ?

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Resistor wattage -

https://www.amazon.com/s?k=2+ohms+resistor&crid=2J933UTKYMZIO&sprefix=2+ohms%2Caps%2C173&ref=nb_sb_ss_p13n-pd-dpltr-ranker_2_6

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Looks like it is either 2W or 5W.

https://www.amazon.com/s?k=2+ohms+resistor&crid=2J933UTKYMZIO&sprefix=2+ohms%2Caps%2C173&ref=nb_sb_ss_p13n-pd-dpltr-ranker_2_6

R's, carbon types, when overheated typically fail as higher resistance, so heat drops. You can measure it with a
volt-ohm-meter, first measure lead R then apply leads to R and subtract from reading the lead R to get its value.

 

[miniaturecrazy22]

4 x 1.5V AA batteries

 

[miniaturecrazy22]

There are 2 that are still lit but not as bright. The rest seems fine.
So it's not fixable? It wouldn't be a big problem I have already bought a new one.

 

[danadak]

Thinking the array is driven, all leds in parallel, so if any LED develops a short
or very low effective resistance, it draws more current thru the R. White LEDs
have a V of around 3V-5V.

So guessing replacing R, w/o disconnecting the offending LEDs, would not
fix the flashlight.

 

[miniaturecrazy22]

Thanks that helps Off in the bin it goes.