This bug report is a parity issue with Java.

Summary:

Deepslate cannot turn into Infested Deepslate if Silverfish crawls into it, since there is no Infested Deepslate in the bedrock minecraft. This type of Deepslate was added to the Java version)

Steps to reproduce:

1. Place Deepslate 3 * 3.
2. Summon silverfish in the middle.

Observed results:

Silverfish will not crawl into Deepslate, as there is no Infested Deepslate in the bedrock version.

Expected results:

The game must have an Infested Deepslate.

Video:

Java Minecraft 21w13a .mp4