Repeaters, when interacting with a powered Comparator, appears to change texture when placed at certain placements (left or right) in relation to the Comparator, as demonstrated in the picture attached.
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Please force a crash by pressing F3 + C
for 10 seconds while in-game and attach the crash report (minecraft/crash-reports/crash-<DATE>-client.txt) here.
The repeater changed texture because it is locked by the comparator.