Using mono 5.18.0.240 and getting exception below

s2 stdout | * Assertion at lock-free-alloc.c:145, condition `sb_header' not met, function:alloc_sb, Failed to allocate memory for the lock free allocator

s2 stderr | Stacktrace:

s2 stderr | at <0xffffffff>
at (wrapper managed-to-native) object.__icall_wrapper_mono_gc_alloc_vector (intptr,intptr,intptr) [0x00009] in <04750267503a43e5929c1d1ba19daf3e>:0
at (wrapper alloc) object.AllocVector (intptr,intptr) [0x000bf] in <04750267503a43e5929c1d1ba19daf3e>:0
s2 stderr | at sr_level.support_resistance.start () [0x0002a] in /home/dbrody/s2/S2_CS/mono/sr_level/sr.cs:160