Similar to MC-93631 which was marked as "resolved" - it's not resolved in Java/1.15.2. Torches pop off of piston plates or off of blocks attached to piston plate.
Environment
Windows 10, Java edition
MC-182728
Torch pops off sticky piston
Resolved
Duplicate
0
This has been fixed in 20w06a, which is a snapshot for 1.16, which will be released in the future.