I've tried closing and opening the Realm, but this doesn't seem to fix the issue. Realms will open (sometimes after a few tries), people can play for abut 2-5 minutes, then it crashes and when you log in again no progress was saved. I have 2 crash logs, and while they look the same to me, I'll post both here.

---- Minecraft Crash Report -------- Minecraft Crash Report ----// This doesn't make any sense!
Time: 6/23/20 1:15 PMDescription: Rendering screen
java.lang.NullPointerException: Rendering screen at nd.a(SourceFile:27) at mr.b(SourceFile:109) at mr.a(SourceFile:76) at dmh.a(SourceFile:134) at dmi.a(SourceFile:42) at dmt.a(SourceFile:317) at dmv.a(SourceFile:117) at djv.a(SourceFile:67) at ebs.a(SourceFile:603) at dlx.e(SourceFile:1021) at dlx.e(SourceFile:654) at net.minecraft.client.main.Main.main(SourceFile:215)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Render threadStacktrace: at nd.a(SourceFile:27) at mr.b(SourceFile:109) at mr.a(SourceFile:76) at dmh.a(SourceFile:134) at dmi.a(SourceFile:42) at dmt.a(SourceFile:317) at dmv.a(SourceFile:117) at djv.a(SourceFile:67)
– Screen render details --Details: Screen name: djv Mouse location: Scaled: (682, 235). Absolute: (2728.101563, 941.371094) Screen size: Scaled: (492, 254). Absolute: (1966, 1015). Scale factor of 4.000000Stacktrace: at ebs.a(SourceFile:603) at dlx.e(SourceFile:1021) at dlx.e(SourceFile:654) at net.minecraft.client.main.Main.main(SourceFile:215)
– System Details --Details: Minecraft Version: 1.16 Minecraft Version ID: 1.16 Operating System: Mac OS X (x86_64) version 10.15.5 Java Version: 1.8.0_74, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1305313896 bytes (1244 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) CPUs: 4 JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 1.16 Backend library: LWJGL version 3.2.1 build 12 Backend API: Intel(R) Iris(TM) Plus Graphics 650 GL version 2.1 INTEL-14.6.18, Intel Inc. GL Caps: Using framebuffer using ARB_framebuffer_object extension Using VBOs: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs: vanilla, file/Ovos Rustic Redemption v1.7 - for 1.15.X Current Language: English (US) CPU: 4x Intel(R) Core(TM) i5-7267U CPU @ 3.10GHz

---- Minecraft Crash Report -------- Minecraft Crash Report ----// Why is it breaking
Time: 6/23/20 1:13 PMDescription: Rendering screen
java.lang.NullPointerException: Rendering screen at nd.a(SourceFile:27) at mr.b(SourceFile:109) at mr.a(SourceFile:76) at dmh.a(SourceFile:134) at dmi.a(SourceFile:42) at dmt.a(SourceFile:317) at dmv.a(SourceFile:117) at djv.a(SourceFile:67) at ebs.a(SourceFile:603) at dlx.e(SourceFile:1021) at dlx.e(SourceFile:654) at net.minecraft.client.main.Main.main(SourceFile:215)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Render threadStacktrace: at nd.a(SourceFile:27) at mr.b(SourceFile:109) at mr.a(SourceFile:76) at dmh.a(SourceFile:134) at dmi.a(SourceFile:42) at dmt.a(SourceFile:317) at dmv.a(SourceFile:117) at djv.a(SourceFile:67)
– Screen render details --Details: Screen name: djv Mouse location: Scaled: (142, 123). Absolute: (570.308594, 492.464844) Screen size: Scaled: (453, 240). Absolute: (1812, 960). Scale factor of 4.000000Stacktrace: at ebs.a(SourceFile:603) at dlx.e(SourceFile:1021) at dlx.e(SourceFile:654) at net.minecraft.client.main.Main.main(SourceFile:215)
– System Details --Details: Minecraft Version: 1.16 Minecraft Version ID: 1.16 Operating System: Mac OS X (x86_64) version 10.15.5 Java Version: 1.8.0_74, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 899660576 bytes (857 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) CPUs: 4 JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 1.16 Backend library: LWJGL version 3.2.1 build 12 Backend API: Intel(R) Iris(TM) Plus Graphics 650 GL version 2.1 INTEL-14.6.18, Intel Inc. GL Caps: Using framebuffer using ARB_framebuffer_object extension Using VBOs: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs: vanilla, file/Ovos Rustic Redemption v1.7 - for 1.15.X Current Language: English (US) CPU: 4x Intel(R) Core(TM) i5-7267U CPU @ 3.10GHz