Linked Variation imag swatches loading only after hovering over them – Mobile

Hi,

I have set linked variations swatches but on mobile devices (android – chrome browser) some of the swatches images are loading only after hovering over them with finger.

I have got WP Rocket plugin active – after turning the plugin off the issue is solved.
I have tried to add following classes to CSS and Lazy Load exclusions/safelist in WP Rocket, but with no luck:

wd-swatcheswd-swatches-productwd-bg-style-1wd-text-style-1wd-dis-style-1wd-size-largewd-shape-rounded
wd-swatchwd-enabledwd-bgwd-tooltipwd-activewd-tooltip-inited
wd-swatch%20wd-enabled%20wd-bg%20wd-tooltip%20wd-tooltip-inited
wd-swatches%20wd-swatches-product%20%20wd-bg-style-3%20wd-text-style-3%20wd-dis-style-1%20wd-size-large%20wd-shape-round
wd-swatch-bg
value%20cell%20with-swatches

Any idea how can I solve it please without turning off the WP Rocket Plugin and current settings?
Thanks in advance
Vik