hairline cracks in SLC - do i need to repair?

NHW

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Have a couple of hairline cracks in my SLC which has been laid for about a good 2 weeks now, i think it may have been due to foot traffic since the LVT has been delayed in being layed (scheduling issues with my flooring guy)

room spans around 6m x 5m and its not tons of cracks just a few going in different directions. knocked on and its all sounds completely solid underneath, no hollow-spots.

Do i need to rake out and just re-fill with the same SLC? would that even work as it may be too thin, product is 2mm-15mm (ultra tile 2 part bag & bottle SLC)

or should I rake and fill with this :

Epoxyset 105 Standard Concrete Repair 4kg

any advice appreciated (y)
 
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